by Pascoe, P J, Steffey, E P, Black, W D, Claxton, J M, Jacobs, J R, Woliner, M J
Published in American journal of veterinary research (01.08.1993)

by Pascoe, P.J, Black, W.D, Claxton, J.M, Sansom, R.E
Published in Journal of veterinary pharmacology and therapeutics (01.09.1991)