TY - JOUR AU - Chen, Y; Ou, G; Lian, G TI - Effect of preoperative biliary drainage on complications following pancreatoduodenectomy: a meta-analysis JO - Medicine VL - 94 PY - 2015 DO - 10.1097/MD.0000000000001199 L3 - PubMed-ID: 26200634 SP - e1199 N1 - et al. ER -