TY  - JOUR 
T1  - Transumbilical endoscopic cholecystectomy in a porcine model
JO  - Acta Cirúrgica Brasileira
A1  - Zhu, Hong-Yi
A1  - Li, Fu
A1  - Li, Ke-Wei
A1  - Zhang, Xi-Wen
A1  - Wang, Jian
A1  - Ji, Fu
SN  - 0102-8650
UL  - 10.1590/S0102-86502013001100003
VL  - 28 
Y1  - 2013
PB  - Brasil 
ER  -