TY  - JOUR 
T1  - Hemorrhoids: an experimental model in monkeys
JO  - Acta Cirúrgica Brasileira
A1  - Plapler, Hélio
SN  - 0102-8650
UL  - 10.1590/S0102-86502006000500014
VL  - 21 
Y1  - 2006
PB  - Brasil 
ER  -