Randomization: beyond tossing a coin.
. Methods in Epidemiologic, Clinical and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax. Montevídeo, Uruguay.|. Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil.
Juliana Carvalho
JC
Ferreira
. Methods in Epidemiologic, Clinical and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax. Montevídeo, Uruguay.|. Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
Cecilia Maria
CM
Patino
D006801:Humans; D011897:Random Allocation; D015983:Selection Bias