López-Colom, Paola, and María Isabel Maridueña-Zavala. “Preliminary Study on Intraocular Abnormalities Found in Senior Dogs by Ultrasonography in a Veterinary Hospital in Guayaquil, Ecuador”. BioNatura Journal: Ibero-American Journal of Biotechnology and Life Sciences 1, no. 2 (June 15, 2024): 8. Accessed May 11, 2026. https://bionaturajournal.com/repositorio/index.php/bionatura/article/view/77.