KOSTAKIS, CH., T. ANAGNOSTOU, I. SAVVAS, CH. VERVERIDIS, y A. KOURELIS. 2019. «The Effect of Progesterone on the Anesthetic and Analgesic Requirements for Ovariohysterectomy in the Dog». Journal of the Hellenic Veterinary Medical Society 70 (3):1717-26. https://doi.org/10.12681/jhvms.21798.