title: Virions resembling papillomaviruses in hyperkeratotic lesions from sun-damaged skin.
mesh_terms: D006801:Humans; D007642:Keratosis / Q000209:etiology / Q000382:microbiology*; D027383:Papillomaviridae / Q000302:isolation & purification*; D012867:Skin / Q000382:microbiology*; D013472:Sunlight / Q000009:adverse effects*; D014771:Virion / Q000648:ultrastructure