Recent studies othe possible role of viruses in human cancer.
D000256:Adenoviridae; D006801:Humans; D007938:Leukemia / Q000209:etiology*; D009369:Neoplasms / Q000209:etiology*; D009374:Neoplasms, Experimental; D009858:Oncogenic Viruses / Q000254:growth & development / Q000302:isolation & purification; D011120:Polyomavirus; D012190:Retroviridae; D013539:Simian virus 40