Fig. 3. Forest plots and Doi plots for: (A) need for intraoperative transfusion; (B) conversion to open surgery; (C) need for intra-abdominal drain; (D) postoperative mortality; (E) biliary leakage; (F) intra-abdominal abscess; (G) biliary stenosis; (H) postoperative bleeding; (I) pancreatic fistula; (J) pulmonary complications; (K) paralytic ileus; and (L) need for reoperation.