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Continuous and bimonthly publicationISSN (on-line): 1806-3756
Juliana Carvalho Ferreira1,2, Cecilia Maria Patino1,3
DOI: http://dx.doi.org/10.1590/S1806-37562016000000296
Ferreira1 JC, 2 , Patino1 CM, 3 . Randomization: beyond tossing a coin. J Bras Pneumol. 2016;42(5):310