Lago, Luiz Alberto do, et al. “Clinical Picture of Experimental Crotalic Poisoning in Cattle (Crotalus Durissus Terrificus - Positive Crotamine)”. Brazilian Journal of Veterinary Research and Animal Science, vol. 37, no. 4, Jan. 2000, pp. 312-5, https://doi.org/10.1590/S1413-95962000000400010.