Mota-Rojas, Daniel, María Alonso-Spilsbury, Lilian Mayagoitia Novales, María Elena Trujillo, Javier Valencia, Ramiro Ramírez-Necoechea, Saúl Cortés, and Isabel Escobar Ibarra. 2005. “Changes of Vaginal Epithelium in Creole Pigs Ovulating During Lactation”. Brazilian Journal of Veterinary Research and Animal Science 42 (5): 333-38. https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26409.