Episode 21 of CRAMSURG - Clinical Reasearch Appraisal and Methodology for Surgical Trainees. The paper for discussion is Laparoscopic Versus Open Liver Resection for Hepatocellular Carcinoma: A Case Controlled Study with Propensity Score Matching, WJS Apr 2021. Prof Danny Rosin talks about the Editorial Process at the World Journal of Surgery - what surgeons need to know! Brought to you by CRAMSURG www.cramsurg.org.