TY - RPRT TI - Identification and categorization of technical errors by Observational Clinical Human Reliability Assessment (OCHRA) during laparoscopic cholecystectomy. AU - B Tang AU - G B Hanna AU - P Joice AU - A Cuschieri PY - 2004 DO - 10.1001/archsurg.139.11.1215 UR - https://pubmed.ncbi.nlm.nih.gov/15545569/ ID - 15545569 ER -