title: Heterogeneity of the human papillomavirus group.
authors.affiliation: Referenzzentrum für humanpathogene Papillomviren, Deutsches Krebsforschungszentrum, Heidelberg, Federal Republic of Germany.
authors.forename: E M
authors.initials: EM
authors.lastname: de Villiers
mesh_terms: D000818:Animals; D005260:Female; D005814:Genes, Viral; D006801:Humans; D010212:Papilloma / Q000382:microbiology; D027383:Papillomaviridae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D014412:Tumor Virus Infections / Q000382:microbiology