de Vasconcelos, Kath Freire, et al. “Contribution of the Iridology in the Subclinical Mastitis Diagnosis in Goats (Capra Hircus, Linnaeus, 1758)”. Brazilian Journal of Veterinary Medicine, vol. 35, no. 2, June 2013, pp. 163-8, https://bjvm.org.br/BJVM/article/view/598.