title: Feline leukemia virus: purification from tissue culture fluids.
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000382:microbiology*; D002415:Cats; D002478:Cells, Cultured / Q000382:microbiology*; D002499:Centrifugation, Density Gradient; D007938:Leukemia / Q000382:microbiology* / Q000662:veterinary*; D008854:Microscopy, Electron; D012087:Reoviridae / Q000302:isolation & purification; D014713:Viruses, Unclassified / Q000302:isolation & purification*