López-Zhindón, N.; Dumas, M.; Samaniego, X.; Galarza, D.; Argudo-Garzón, D. Evaluation of Two Extenders in Canine Epididymal Spermatozoa Freezing (Polyvinyl Alcohol and Egg Yolk). Rev. Cient. FCV-LUZ 2022, 32, 1-5.