Bryant, T. C., Nichols, J. R., Rogers, K. C., Farmer, T. D., Miles, D. G., Campbell, J. and Richeson, J. T. (2011) “Effect of trivalent modified-live virus respiratory vaccine on performance, health, and carcass traits of lightweight feeder steers”, The Bovine Practitioner, 45(2), pp. 124–130. doi: 10.21423/bovine-vol45no2p124-130.