Baruselli PS, Madureira EH, Barnabe VH, Barnabe RC, Berber RC de A. Evaluation of synchronization of ovulation for fixed timed insemination in buffalo (Bubalus bubalis). Braz. J. Vet. Res. Anim. Sci. 2003;40(6):431-442. doi:10.1590/S1413-95962003000600007