Córdova Izquierdo, A.; Xolalpa Campos, V. M.; Córdova Jiménez, M. S.; Córdova Jiménez, C. A.; Guerra Liera, J. E. Factors that predispose to causing diseases of abortions in dairy cows: a review. Rev. complut. cienc. vet. 2007, 1 (2), 7-20.