Atienza-Ramos, Patricia B., Esbal Jiménez-Cabán, and Melvin Pagán-Morales. 2015. “Expression of Pregnancy-Specific Beta-1-Glycoprotein, Aromatase and Nitric Oxide Synthase in Bovine Sperm”. The Journal of Agriculture of the University of Puerto Rico 99 (1):1-11. https://doi.org/10.46429/jaupr.v99i1.2522.