title: Demonstration of human papillomavirus DNA in two keratoacanthomas.
mesh_terms: D000328:Adult; D004273:DNA, Neoplasm / Q000302:isolation & purification; D004279:DNA, Viral / Q000302:isolation & purification*; D006801:Humans; D007636:Keratoacanthoma / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D027383:Papillomaviridae / Q000302:isolation & purification*; D012878:Skin Neoplasms / Q000382:microbiology*
chemical_list: D004273:DNA, Neoplasm; D004279:DNA, Viral