[Precancerous conjunctival epidermization in bovines and a filtrable virus].
D000818:Animals; D002417:Cattle; D003228:Conjunctiva; D003230:Conjunctival Neoplasms; D009369:Neoplasms / Q000821:virology*; D014777:Virus Diseases / Q000662:veterinary*
CATTLE/neoplasms; CONJUNCTIVA/neoplasms; NEOPLASMS/virology; VIRUS DISEASES/veterinary