Carter, B. L., D. G. McClary, G. D. Mechor, R. A. Christmas, M. J. Corbin, and C. A. Guthrie. “Comparison of 3-, 5-, and 7-Day Post-Treatment Evaluation Periods for Measuring Therapeutic Response to Tilmicosin Treatment of Bovine Respiratory Disease”. The Bovine Practitioner, vol. 40, no. 2, June 2006, pp. 97-102, doi:10.21423/bovine-vol40no2p97-102.