BonDurant, R. H., Gajadhar, A., Campero, C. M., Johnson, E., Lun, Z.-R., Nordhausen, R. W., Van Hoosear, K. A., Villanueva, M. R., & Walker, R. L. (1999). Preliminary characterization of a Tritrichomonas foetus-like protozoan isolated from preputial smegma of virgin bulls. The Bovine Practitioner, 33(2), 124–127. https://doi.org/10.21423/bovine-vol33no2p124-127