Catão-Dias, J., and I. Sinhorini. “Influence of Low Environmental Temperature on Inflammation in Bullfrog (Rana Catesbeiana): Qualitative and Quantitative Evaluation”. Brazilian Journal of Veterinary Research and Animal Science, Vol. 36, no. 2, Jan. 1999, pp. 75-81, doi:10.1590/S1413-95961999000200004.