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1 . Methods in Epidemiologic, Clinical, and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax, Montevideo, Uruguay.
2 . Department of Medicine, Division of Gastroenterology, University of Ottawa, Ottawa, ON, Canada.
3 . Divisão de Pneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.
4 . Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
1 . Methods in Epidemiologic, Clinical, and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax, Montevideo, Uruguay.
2 . Department of Medicine, Division of Gastroenterology, University of Ottawa, Ottawa, ON, Canada.
3 . Divisão de Pneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.
4 . Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.