title: Results from randomized studies may differ from those obtained from large prospective multi-centre databases.
authors.forename: Alexander
authors.initials: A
authors.lastname: Engel
mesh_terms: D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology*; D010535:Laparoscopy; D008297:Male; D012004:Rectal Neoplasms / Q000401:mortality* / Q000601:surgery*