Perea Ganchou, F., Mankey, J.E., Puttaswamy Goravanahally, M., Keith Inskeep, E. y Flores, J.A. 1. Effect of chronic administration of endothelin receptor type a antagonist (bq-610) on functional lifespan of the corpus luteum in sheep. Revista Científica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia. 22, 4 (1).