Fig. 1From: Optimization of a laparoscopic procedure for advanced intrahepatic cholangiocarcinoma based on the concept of “waiting time”: a preliminary reportIdentification of eligible patients and establishment of traditional and optimized groups by 1:2 propensity score matching. Abbreviations: ICC, intrahepatic cholangiocarcinoma; PSM, propensity score matching; BMI, body mass index; ASA, American Society of Anesthesiologists; ALB, albumin; ALT, alanine aminotransferase; AST, aspartate aminotransferase; T.Bil, total bilirubinBack to article page