TY  - JOUR 
T1  - Comparison of outcomes between off-pump versus on-pump coronary artery bypass surgery in elderly patients: a meta-analysis
JO  - Brazilian Journal of Medical and Biological Research
A1  - Zhu, Z.G.
A1  - Xiong, W.
A1  - Ding, J.L.
A1  - Chen, J.
A1  - Li, Y.
A1  - Zhou, J.L.
A1  - Xu, J.J.
SN  - 0100-879X
UL  - 10.1590/1414-431X20165711
VL  - 50 
Y1  - 2017
PB  - Brasil 
ER  -