Romero EC, Sakata EE, Pinto JR, Yasuda PH, Brandão AP. Search for agglutinating antibodies to Leptospira and Leptonema in horses, São Paulo, Brazil. Braz. J. Vet. Res. Anim. Sci. 1994;31(3-4):210-215. doi:10.11606/issn.1678-4456.bjvras.1994.52067