Van Donkersgoed, J., and J. K. Merrill. “A Comparison of Tilmicosin to Gamithromycin for on Arrival Treatment of Bovine Respiratory Disease in Feeder Steers”. The Bovine Practitioner, vol. 46, no. 1, May 2012, pp. 46-51, doi:10.21423/bovine-vol46no1p46-51.