TY  - JOUR 
T1  - Methodological and statistical topics in randomized controlled clinical trials
JO  - Arquivos Brasileiros de Cardiologia
A1  - Escosteguy, Claudia Caminha
SN  - 0066-782X
UL  - 10.1590/S0066-782X1999000200002
VL  - 72 
Y1  - 1999
PB  - Brasil 
ER  -