Effect of active and passive immunization with luteinizing hormone-releasing hormone on serum luteinizing hormone and follicle-stimulating hormone levels and the ultrastructure of the pituitary gonadotrophs in castrated male rats - Arimura,A.; Shino,M.; de la Cruz,K.G.; Rennels,E.G.; Schally,A.V. (Endocrinology, 1976)