Oryan, Ahmad, Mohsen Ghane, Nasrollah Ahmadi, and Yahya Daneshbod. “Melanoma of Unknown Primary Origin Metastasizing to Visceral Organs in a Sheep”. Brazilian Journal of Veterinary Pathology 11, no. 1 (March 30, 2018): 24–27. Accessed October 19, 2025. https://bjvp.org.br/bjvp/article/view/250.