title: Symposium: characterization of oncornaviruses and related viruses--a report.
mesh_terms: D001355:Alpharetrovirus / Q000145:classification; D004279:DNA, Viral / Q000378:metabolism; D017988:Gammaretrovirus / Q000145:classification; D005256:Leukemia Virus, Feline / Q000145:classification; D009374:Neoplasms, Experimental / Q000209:etiology; D009858:Oncogenic Viruses / Q000145:classification* / Q000378:metabolism / Q000648:ultrastructure; D012190:Retroviridae
chemical_list: D004279:DNA, Viral