title: Basal cell carcinoma of the anus.
authors.affiliation: Department of Surgery, Calais Regional Hospital, Maine, USA.
authors.forename: W P
authors.initials: WP
authors.lastname: Butler
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001005:Anus Neoplasms / Q000473:pathology*; D002280:Basal Cell Carcinoma / Q000473:pathology*; D006801:Humans; D008297:Male