Miller, M. M., O’Toole, D., Cavender, J. L., Cornish, T. E., Dawson, T. G., Smylie, J. M., Fox, J. H., Hill, K. L., Montgomery, D. L., Vazquez, M. and Schumaker, B. A. (2013) “Vaccine associated mucosal disease case study: Demonstrating the importance of subsequent herd PI testing”, The Bovine Practitioner, 47(2), pp. 84–93. doi: 10.21423/bovine-vol47no2p84-93.