title: Type C virus in lymphosarcoma in northern pike (Esox lucius).
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000201:enzymology* / Q000209:etiology; D005399:Fishes; D008228:Lymphoma, Non-Hodgkin / Q000201:enzymology* / Q000209:etiology; D012194:RNA-Directed DNA Polymerase / Q000378:metabolism*; D012190:Retroviridae / Q000201:enzymology*; D012621:Seasons; D013696:Temperature
chemical_list: D012194:RNA-Directed DNA Polymerase