title: Colon and rectal surgery.
authors.forename: G C
authors.initials: GC
authors.lastname: Oliver
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications; D003107:Colorectal Surgery; D006484:Hemorrhoids / Q000601:surgery; D006801:Humans; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000601:surgery