title: Tracing cancer pathogene.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D006224:Cricetinae; D007938:Leukemia / Q000382:microbiology* / Q000517:prevention & control; D012190:Retroviridae / Q000276:immunology / Q000302:isolation & purification*
chemical_list: D000956:Antigens, Viral