M.A. Lammoglia, M.M. Zeitoun, R.D. Randel and S.T. Willard
Journal of Animal and Veterinary Advances 6 ( 2 ): 158 - 163 , 2007
C. Rose, W.B. Tucker, S.T. Willard, A. Williams, J. Fuquay, P.L. Ryan and C.S. Whisnant
Journal of Animal and Veterinary Advances 7 ( 2 ): 154 - 159 , 2008
S.T. Willard, A. Webb, S.D. Bowers and B.S. Gandy
Journal of Animal and Veterinary Advances 3 ( 5 ): 289 - 293 , 2004
S.T. Willard, D.A. Neuendorff, A.W. Lewis and R.D. Randel
Journal of Animal and Veterinary Advances 4 ( 8 ): 726 - 729 , 2005