TY  - JOUR 
T1  - Efficacy and effectiveness of treatment
JO  - Sao Paulo Medical Journal
A1  - Atallah, Álvaro Nagib
SN  - 1516-3180
UL  - 10.1590/S1516-31801996000400001
VL  - 114 
Y1  - 1996
PB  - Brasil 
ER  -