J. A. Fernández Silva, N. F. Ramírez Vásquez, and N. M. Correa Valencia, “Factors associated with Mycobacterium avium subsp. paratuberculosis in dairy cows from Northern Antioquia, Colombia”, Rev. colomb. cienc. pecu., vol. 30, no. 1, pp. 48–59, Jan. 2017.