title: Viral etiology of human cancer: a historical perspective.
mesh_terms: D006564:Herpesviridae / Q000302:isolation & purification; D049673:History, 20th Century; D006801:Humans; D009369:Neoplasms / Q000266:history / Q000821:virology*; D027383:Papillomaviridae / Q000302:isolation & purification; D027382:Polyomaviridae