Wallace, J. O., L. C. Hollis, C. D. Reinhardt, J. F. Coetzee, D. G. Renter, D. Llewellyn, and T. T. Marston. “Failure to Eliminate the Anaplasma Marginale Carrier State in Beef Cows Following Multiple Treatments With Long-Acting Injectable Oxytetracycline”. The Bovine Practitioner, vol. 41, no. 2, June 2007, pp. 84-87, doi:10.21423/bovine-vol41no2p84-87.