title: Comparative aspects of bovine leukemia.
mesh_terms: D000818:Animals; D002417:Cattle; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007938:Leukemia / Q000662:veterinary*; D009976:Orthomyxoviridae Infections / Q000662:veterinary*; D010414:Pennsylvania