Santos, Gislaine Raquel, et al. “Epidemiological Analysis of Infection by Enzootic Bovine Leukemia Virus (BLV) in the Microregion of Garanhuns, Pernambuco, Brazil”. Brazilian Journal of Veterinary Medicine, vol. 35, no. 4, Dec. 2013, pp. 371-7, https://bjvm.org.br/BJVM/article/view/622.