Fulton, R. W.; Cook, B. J.; Blood, K. S.; Confer, A. W.; Payton, M. E.; Step, D. L.; Saliki, J. T.; Burge, L. . J.; Welsh, R. D. Immune Response to Bovine Respiratory Disease Vaccine Immunogens in Calves at Entry to Feedlot and Impact on Feedlot Performance. Bov. pract. 2010, 45, 1-12.