title: Anal cancer: a changing disease.
authors.forename: J M
authors.initials: JM
authors.lastname: Northover
mesh_terms: D001005:Anus Neoplasms / Q000209:etiology* / Q000382:microbiology; D006801:Humans; D008297:Male; D027383:Papillomaviridae / Q000302:isolation & purification; D012749:Sexually Transmitted Diseases; D014412:Tumor Virus Infections / Q000150:complications* / Q000635:transmission