R. F. . Silva Molano, F. . Castro, J. M. . Montoya, and A. M. . Loaiza Echeverri, “Frequency study of canine leptospirosis in Manizales – Colombia, with the aid of microscopic aglutination test (MAT)”, vetzootec, vol. 2, no. 2, pp. 35–39, Dec. 2008.