TY - RPRT TI - Laparoscopic or open appendectomy for complicated appendicitis? AU - Peter Kienle AU - Markus W Büchler PY - 2006 DO - 10.1038/ncpgasthep0661 UR - https://pubmed.ncbi.nlm.nih.gov/17130876/ ID - 17130876 ER -