found: Tumorigenic DNA viruses, c1989.
found: Wikipedia, Dec. 7, 2012(Oncovirus. An oncovirus is a virus that can cause cancer. This term originated from studies of acutely transforming retroviruses in the 1950--60s, often called oncornaviruses to denote their RNA virus origin. It now refers to any virus with a DNA or RNA genome causing cancer and is synonymous with "tumor virus" or "cancer virus".)
found: 2013 MeSH browser, viewed Dec. 7, 2012(Oncogenic Viruses. Scope note: Viruses that produce tumors. UF Tumor Viruses)
