Bibliographies thématiques / Floating Catchment Area

Littérature scientifique sur le sujet « Floating Catchment Area »

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Publié le 20 juillet 2024

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Articles de revues sur le sujet "Floating Catchment Area"

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Luo, Wei, et Tara Whippo. « Variable catchment sizes for the two-step floating catchment area (2SFCA) method ». Health & ; Place 18, no 4 (juillet 2012) : 789–95. http://dx.doi.org/10.1016/j.healthplace.2012.04.002.

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Ding, Zilin, Hongjun Dong, Liang Yang, Na Xue, Lanping He et Xinqiang Yao. « A Study on the Emergency Shelter Spatial Accessibility Based on the Adaptive Catchment Size 2SFCA Method ». ISPRS International Journal of Geo-Information 11, no 12 (26 novembre 2022) : 593. http://dx.doi.org/10.3390/ijgi11120593.

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In order to access the spatial accessibility of emergency shelters, the relationship between the supply and demand of emergency shelters in the two dimensions of space and non-space must be comprehensively considered. Meanwhile, it is vital to understand the competitive relationship among emergency shelters. However, there are disadvantages when using the two-step floating catchment area (2SFCA) method and the improved 2SFCA method when addressing these issues. This study proposes the adaptive catchment size 2SFCA (A-2SFCA) method to calculate spatial accessibility values, which can work alongside the two relationships mentioned above. The analysis procedure of the A-2SFCA method has two stages. Firstly, this method adjusts the catchment size of the shelters by observing how crowded they are and repeatedly using this statistic in a service subset. At the end of this stage, every catchment area is determined. Secondly, the catchment areas are used to calculate the spatial accessibility values. The method was used to study a region in the Tianjin urban area in China. The proposed A-2SFCA and fixed-coverage-based two-step floating catchment area (FC2SFCA) methods are employed to measure and compare the spatial accessibility values. The result shows that the spatial accessibility in Tianjin urban area is unstable. The spatial accessibility result obtained from the A-2SFCA method is more reasonable than the FC2SFCA method when analyzing the reasonable catchment areas of emergency shelters. The A-2SFCA method provides a method for determining the catchment size of public service providers, which can be used for the accessibility analysis of various other public facilities.
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Mao, Kainan, Yuehong Chen, Guohao Wu, Junwang Huang, Wanying Yang et Zelong Xia. « Measuring Spatial Accessibility of Urban Fire Services Using Historical Fire Incidents in Nanjing, China ». ISPRS International Journal of Geo-Information 9, no 10 (6 octobre 2020) : 585. http://dx.doi.org/10.3390/ijgi9100585.

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The measurement of spatial accessibility of fire services is a key task in enhancing fire response efficiency and minimizing property losses and deaths. Recently, the two-step floating catchment area method and its modified versions have been widely applied. However, the circle catchment areas used in these methods are not suitable for measuring the accessibility of fire services because each fire station is often responsible for the fire incidents within its coverage. Meanwhile, most existing methods take the demographic data and their centroids of residential areas as the demands and locations, respectively, which makes it difficult to reflect the actual demands and locations of fire services. Thus, this paper proposes a fixed-coverage-based two-step floating catchment area (FC2SFCA) method that takes the fixed service coverage of fire stations as the catchment area and the locations and dispatched fire engines of historical fire incidents as the demand location and size, respectively, to measure the spatial accessibility of fire services. Using a case study area in Nanjing, China, the proposed FC2SFCA and enhanced two-step floating catchment area (E2SFCA) are employed to measure and compare the spatial accessibility of fire incidents and fire stations. The results show that (1) the spatial accessibility across Nanjing, China is unbalanced, with relatively high spatial accessibility in the areas around fire stations and the southwest and northeast at the city center area and relatively low spatial accessibility in the periphery and boundary of the service coverage areas and the core of the city center; (2) compared with E2SFCA, FC2SFCA is less influenced by other fire stations and provides greater actual fire service accessibility; (3) the spatial accessibility of fire services is more strongly affected by the number of fire incidents than firefighting capabilities, the area of service coverage, or the average number of crossroads (per kilometer). Suggestions are then made to improve the overall spatial access to fire services.
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BARRÍOS, Johnatan Estik, Carlos Alberto MONCADA et Diego Alexander ESCOBAR. « GEOGRAPHIC ACCESSIBILITY ANALYSIS USING THE E2SFCA MODEL IN HOSPITALS LOCATED IN ARMENIA, QUINDÍO ». GeoJournal of Tourism and Geosites 47, no 2 (30 juin 2023) : 648–55. http://dx.doi.org/10.30892/gtg.47233-1065.

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This research applies the Enhanced Two-step Floating Catchment Area method to determine the accessibility conditions of to the health care network in an intermediate Colombian city. This research aims to evaluate the medical personnel supply concerning the geospatial position of health care services in Armenia, Colombia, considering the operational and geometric particularities of the private transportation network. As a method, the Enhanced Two-step Floating Catchment Area is proposed, complemented with socio-demographic analyses. The most important result is about the level of medical coverage for socioeconomic strata 1, 2, and 3, which are below the average established by the World Bank.
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Pan, Xiaofang, Mei-Po Kwan, Lin Yang, Shunping Zhou, Zejun Zuo et Bo Wan. « Evaluating the Accessibility of Healthcare Facilities Using an Integrated Catchment Area Approach ». International Journal of Environmental Research and Public Health 15, no 9 (19 septembre 2018) : 2051. http://dx.doi.org/10.3390/ijerph15092051.

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Accessibility is a major method for evaluating the distribution of service facilities and identifying areas in shortage of service. Traditional accessibility methods, however, are largely model-based and do not consider the actual utilization of services, which may lead to results that are different from those obtained when people’s actual behaviors are taken into account. Based on taxi GPS trajectory data, this paper proposed a novel integrated catchment area (ICA) that integrates actual human travel behavior to evaluate the accessibility to healthcare facilities in Shenzhen, China, using the enhanced two-step floating catchment area (E2SFCA) method. This method is called the E2SFCA-ICA method. First, access probability is proposed to depict the probability of visiting a healthcare facility. Then, integrated access probability (IAP), which integrates model-based access probability (MAP) and data-based access probability (DAP), is presented. Under the constraint of IAP, ICA is generated and divided into distinct subzones. Finally, the ICA and subzones are incorporated into the E2SFCA method to evaluate the accessibility of the top-tier hospitals in Shenzhen, China. The results show that the ICA not only reduces the differences between model-based catchment areas and data-based catchment areas, but also distinguishes the core catchment area, stable catchment area, uncertain catchment area and remote catchment area of healthcare facilities. The study also found that the accessibility of Shenzhen’s top-tier hospitals obtained with traditional catchment areas tends to be overestimated and more unequally distributed in space when compared to the accessibility obtained with integrated catchment areas.
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Wang, Fahui. « Inverted Two-Step Floating Catchment Area Method for Measuring Facility Crowdedness ». Professional Geographer 70, no 2 (9 octobre 2017) : 251–60. http://dx.doi.org/10.1080/00330124.2017.1365308.

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Hermana, Joni, Irhamah, Dian Saptarini et Tatas. « Designing catchment area for water resources management in ITS campus ». E3S Web of Conferences 48 (2018) : 05002. http://dx.doi.org/10.1051/e3sconf/20184805002.

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Institut Teknologi Sepuluh Nopember (ITS) Campus, with the area of 167.4 Ha, is located within Surabaya coastal region in the eastern part of Java Island. It has initial characteristic with wetlands and swamps ecosystem. As a science and technological university, with the main acitivities in teaching, experimental laboratory works, and student activities, ITS is, currently, using ± 49% of its total vast area as building blocks for supporting academic facilities. Being a campus in a coastal zone, the commonly main problems are high porous soil, brackish surface water, high level of ground water, an obstructed drainage tendency because of delicate slant, and low catchment capability. This paper provides an action program on how ITS manage water resources within campus area in order to suppress environmental damage. Many steps had been taken into account for water catchment role, for instance: maintaining the catchment area on the main ITS master plan, planning catchment pond, surface water stabilization by preventing ground water usage, interrupting drainage water flow as being directly discharged into the city drainage system, rain water harvesting, and also designing floating floor for buildings.
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Paez, Antonio, Christopher D. Higgins et Salvatore F. Vivona. « Demand and level of service inflation in Floating Catchment Area (FCA) methods ». PLOS ONE 14, no 6 (27 juin 2019) : e0218773. http://dx.doi.org/10.1371/journal.pone.0218773.

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Mostarac, Katarina, Zvonko Kavran et Petar Feletar. « APPLICATION OF CATCHMENT AREA METHOD FOR DETERMINING POST OFFICE ACCESSIBILITY : CASE STUDY BJELOVAR-BILOGORA COUNTY ». Geoadria 24, no 1 (26 novembre 2019) : 53–70. http://dx.doi.org/10.15291/geoadria.2858.

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Accessibility of postal access points is an important part that service providers, as well as regulatory bodies should consider when planning postal network capacities. This is important for the provision of the universal postal service. In this paper, accessibility of post offices is determined by the application of the Two Step Floating Catchment Area method (2SFCA). Geographic Information System (GIS) was used for spatial analysis of postal network, locations, calculation of distances, application of the method and presentation of the results. The current regulatory framework is validated by using catchment area derived from the regulatory criterion.
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Xia, Zelong, Hao Li, Yuehong Chen et Wenhao Yu. « Integrating Spatial and Non-Spatial Dimensions to Measure Urban Fire Service Access ». ISPRS International Journal of Geo-Information 8, no 3 (13 mars 2019) : 138. http://dx.doi.org/10.3390/ijgi8030138.

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Assessing the access to fire service at an urban scale involves accounting for geographical impedance, demand, and supply, thus both spatial and non-spatial dimensions must be taken into account. Therefore, in this paper, an optimized two-step floating catchment area (F-2SFCA) method is proposed for measuring urban fire service access, which incorporates the effects of both spatial and non-spatial factors into fire service access. The proposed model is conducted in a case study to assess the fire service accessibility of Nanjing City, China, and then compares its differences and strengths to the existing 2SFCA (two-step floating catchment area) methods. The experimental results demonstrate that the proposed method effectively quantifies the actual fire service needs and reflects a more realistic spatial pattern of accessibility (i.e., high accessibility level corresponded to a low fire service needs). In addition, we teste the relationship between service accessibility and the facility busyness using the inverted 2SFCA method. The empirical findings indicate that the weighted average accessibility obtained by F-2SFCA is reciprocal to facility busyness across the study area (based on a 5-min catchment), and fits an obvious nonlinear correlation with the high R-square values. The above results further prove the effectiveness and accuracy of the proposed method in characterizing the accessibility of fire services.
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Thèses sur le sujet "Floating Catchment Area"

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Benhlima, Ouidad. « Assessing Transport Modes' Impact on Spatial Accessibility ». Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST091.

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Cette thèse évalue l'impact des modes de transport sur l'accessibilité, intégrant les approches d'accessibilité basées sur la localisation et l'utilité à travers le développement des métriques de la famille "Floating Catchment Area (FCA)" et de la modélisation basée sur les agents. À travers une étude de cas centrée sur la ville de Casablanca et ses zones environnantes, nous analysons les relations entre l'infrastructure urbaine, les options de transport, et les métriques d'accessibilité. La thèse évalue l'état actuel de l'accessibilité et les changements d'accès suite à des améliorations potentielles en simulant des modifications au réseau de transport public existant, y compris l'introduction de nouvelles lignes et services de transport. Les objectifs principaux incluent l'évaluation des différences dans l'accessibilité spatiale au sein de différents modes de transport et l'application de la modélisation basée sur les agents pour simuler et analyser l'impact des améliorations proposées de l'infrastructure de transport. Cette approche combine des perspectives théoriques et une application pratique pour informer les processus de prise de décision politique et de planification urbaine. À travers l'analyse de l'accessibilité, cette thèse contribue à la discussion plus large sur la création d'environnements urbains plus accessibles et équitables
This thesis evaluates transport modes' effects on accessibility, integrating location-based and utility-based accessibility approaches alongside the Floating Catchment Area (FCA) family of metrics and agent-based modeling. Through a case study centered on Casablanca and its surrounding areas, we analyze the relationships between urban infrastructure, transportation options, and accessibility metrics. The thesis assesses the current state of accessibility and the changes in access following potential improvements by simulating modifications to the existing public transportation network, including introducing new transport lines and modes. Key objectives include evaluating the differences in spatial accessibility within different transport modes and applying agent-based modeling to simulate and analyze the impact of proposed transport infrastructure enhancements. This approach combines theoretical insight and practical application to inform policymaking and urban planning processes. Through accessibility analysis, this thesis contributes to the broader discussion on creating more accessible and equitable cities
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Mendez, Ortiz Laura F. « The Role of the Built Environment and Public Transit in Geographic Access to Primary Health Care : A Study of Hamilton County, Ohio ». University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595847536869522.

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Rodrigues, Nicole Costa. « Is spatial accessibility a factor influencing the number of consultations in Porto Municipality ? » Master's thesis, 2021. http://hdl.handle.net/10400.14/34872.

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Data visualization, namely dashboards are widely used in helping target audiences such as the ACES and health investigators in the decision-making process. Taking this into consideration, the goal of this study is to elaborate a user-friendly dashboard that reduces the gaps of dashboards provided by the SNS, as well as understand if Spatial Accessibility has a statistical significant effect on the number of consultations in Primary Health Care. This analysis will be performed initially by applying the Pearson’s correlation test, then using the ANOVA and Kruskall-Wallis Test, finally by analyzing the Principal Components. Two mathematical methods were applied to calculate Spatial Accessibility, Two-Step-Floating catchment area method, and supply-to-demand ratio. Based on this study, it comes to light that the spatial accessibility differs between perishes within each county. The farther away the parishes are from the center, the lower the spatial accessibility. This result emerges when the calculation is made considering the supply-to-demand ratio, where the unit is the primary care center, having a statistically significant impact on the number of consultations. The Principal Component Analysis has demonstrated that certain types of consultations are more popular for specific age groups and that some of those age groups are influenced by Spatial Accessibility.
A visualização da informação, nomeadamente através dos dashboards, é comumente usada de forma a auxiliar o público-alvo, neste caso, Agrupamentos de Centros de Saúde (ACES ) e investigadores do setor da saúde, no seu processo de tomada de decisão. Tendo isto como base, este estudo tem como objetivo a elaboração de um dashboard com uma interface amiga do utilizador, que colmate as lacunas presentes nos dashboards disponibilizados pelo SNS, assim como verificar se a Acessibilidade Espacial tem um impacto estatisticamente relevante no número de consultas nos Cuidados de Saúde Primários, numa primeira fase recorrendo ao teste de correlação de Perason’s, seguido pela aplicação dos testes ANOVA e Kruskall-Wallis e, por último, procedendo à análise dos Principais componentes. Dois métodos matemáticos foram usados de forma a calcular a Acessibilidade Espacial, nomeadamente, o método Two-Step-Floating catchment area e o rácio supply-to-demand. Através deste estudo foi possível perceber que a Acessibilidade Espacial difere entre freguesias do mesmo concelho, sendo que à medida que as freguesias se afastam do centro do concelho a Acessibilidade Espacial decresce. Esta, quando calculada através do rácio supply-to-demand, em que a unidade são os centros de saúde, tem um efeito estatisticamente relevante no número de consultas. Na Análise dos Componentes Principais, alguns fatores sugerem que certos tipos de consulta são mais utilizados por determinadas faixas etárias, assim como certas faixas etárias são mais influenciadas pela Acessibilidade Espacial do que outras.
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Chapitres de livres sur le sujet "Floating Catchment Area"

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Zhou, Long, Bin Li, Sihong Li, Ngan Leng Lei et Kengfong Cheong. « Transportation Integration Development in Hengqin and Macao ». Dans Urban and Regional Cooperation and Development, 67–85. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-8061-9_5.

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AbstractThis chapter first analyses the accessibility of public transportation in Macao and Hengqin based on the plans in the draft ‘Macao Land Transport Master Plan (2021–2030)’. Secondly, the accessibility of schools, bus stops, and other public services in Macao and Hengqin is quantitatively assessed by applying the two-step floating catchment area (2SFCA) method to analyse the adequacy of public services in terms of population density in the transportation areas. Finally, the equity of accessibility in the two areas is compared using the Gini coefficient.
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Tali, Javaid Ahmad, Murtaza Nazir et Mifta ul Shafiq. « Enhanced Two-Step Floating Catchment Area (E2SFCA) Method for Measuring Spatial Accessibility to Primary Healthcare in HD Kote, Mysore (India) ». Dans Towards Sustainable Natural Resources, 255–73. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06443-2_14.

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Pan, Jinghan, Qianru Bi et Xin Wu. « Spatial accessibility analysis of the prefab building suppliers using Gaussian based 2-step floating catchment area method : A case study of Fuzhou city ». Dans Constructional Engineering and Ecological Environment, 81–89. London : CRC Press, 2023. http://dx.doi.org/10.1201/9781003410843-12.

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Melack, John M., et Bruce R. Forsberg. « Biogeochemistry of Amazon Floodplain Lakes and Associated Wetlands ». Dans The Biogeochemistry of the Amazon Basin. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195114317.003.0017.

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Floodplains and associated lakes are important components of the biogeochemistry, ecology, and hydrology of the Amazon basin. Amazon floodplains contain thousands of lakes and associated wetlands linked to each other and to the many rivers of the immense basin. These floodplain lakes modify the passage of flood waves (Richey et al. 1989a), increase nutrient retention and recycling (Melack and Fisher 1990), and influence the chemistry of the rivers (Devol et al. 1995). The mosaic of flooded forests, open water, and floating macrophytes in the central Amazon floodplain makes a significant contribution of methane to the troposphere (Bartlett et al. 1988, Devol et al. 1990). The fishery potential of the large river systems is closely tied to the area of floodplain and the magnitude and duration of inundation (Welcomme 1979, Bayley and Petrere 1989). The majority of fishes harvested in the Amazon basin obtain nutrition in flooded forests (Goulding 1980) or from organic matter derived from floodplain algae (Araujo-Lima et al. 1986, Forsberg et al. 1993). Much progress has been made during the last fifty years toward understanding the lakes of the Amazon floodplain. Still, the vast size of the Amazon basin poses challenges to limnologists working in the region. Recent research has been enhanced by the maintenance of functional floating laboratories in several areas, use of modern ships capable of regional surveys and equipped for hydrographic studies, and applications of remote sensing. Our objective in this chapter is to examine the role of lakes in the hydrology of the floodplain and in the biogeochemistry of carbon, nitrogen, and phosphorous within the central Amazon basin. Particular emphasis is placed on how inundation patterns interplay with carbon balance and nutrient limitation. By combining numerous measurements of primary productivity with recent results from studies using isotopes of carbon, we will examine the contribution of the major plant groups to aquatic foodwebs, and offer a new paradigm for the processing of organic carbon on the Amazon floodplain. The interplay between the Amazon River and local catchments as sources of nutrients to the floodplain indicates the potential sensitivity of the lakes to basin-wide and local disturbances.
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Actes de conférences sur le sujet "Floating Catchment Area"

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Ahmad, Kanij, Al-Mahmud et Arifur Rahman. « Feasibility Analysis of Floating Solar PV Project in Catchment Area of Kaptai Dam ». Dans 2022 International Conference on Energy and Power Engineering (ICEPE). IEEE, 2022. http://dx.doi.org/10.1109/icepe56629.2022.10044882.

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Qiu, Jingyuan, Yuqi Bai, Yichun Hu, Tianhao Wang, Pei Zhang et Chengzhong Xu. « Urban Green Space Accessibility Evaluation Using Age-Based 2-Step Floating Catchment Area Method ». Dans IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2019. http://dx.doi.org/10.1109/igarss.2019.8898226.

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Zhu, Xiaomeng, Zhijun Tong, Xiaolong Luo, Xiangqian Li, Pengda Lin et Jiquan Zhang. « Evaluation of Emergency Shelter Accessibility Based on the Two-step Floating Catchment Area Method in Changchun ». Dans 8th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2018). Paris, France : Atlantis Press, 2018. http://dx.doi.org/10.2991/rac-18.2018.102.

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Du, Jiusheng, Wenbin Yuan et Yv Wang. « Study on Spatial Accessibility of Pension Institutions in Zhengzhou Based on Improved Two-Step Floating Catchment Area Method ». Dans 2023 30th International Conference on Geoinformatics. IEEE, 2023. http://dx.doi.org/10.1109/geoinformatics60313.2023.10247779.

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Cerda, K., V. Cassidy, R. Brisson et H. Mehta. « Analysis of Spatial Access to Computer-assisted, Image-guided Navigational Bronchoscopy Using Enhanced Two-step Floating Catchment Area Method ». Dans American Thoracic Society 2024 International Conference, May 17-22, 2024 - San Diego, CA. American Thoracic Society, 2024. http://dx.doi.org/10.1164/ajrccm-conference.2024.209.1_meetingabstracts.a6782.

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