Campos, Ângela Piauilino, et al. “Leptospiral Agglutinins in Pigs Slaughtered for Consumption and Their Association With Hepatic and Pulmonary Impairment”. Revista De Patologia Tropical Journal of Tropical Pathology, vol. 40, no. 2, July 2011, pp. 137-48, doi:10.5216/rpt.v40i2.14939.