Troyer, D L Gross, microscopic and ultrastructural lesions of protoporphyria in Limousin calves. [electronic resource] - Zentralblatt fur Veterinarmedizin. Reihe A May 1991 - 300-5 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0514-7158 Standard No.: 10.1111/j.1439-0442.1991.tb01016.x doi Subjects--Topical Terms: AnimalsCattleCattle Diseases--pathologyLiver--ultrastructureLiver Diseases--pathologyMicroscopy, ElectronPorphyrias--pathologyProtoporphyrinsSkin--ultrastructureSkin Diseases--pathology