1. Veterinary Population Medicine; University of Minnesota; St Paul MN
2. School of Statistics ; University of Minnesota; St Paul MN
3. Veterinary Biomedical Science; University of Minnesota; St Paul MN
4. Department of Animal Science; Texas A & M University; College Station TX
5. Department of Animal Science; Texas A & M University; Navasota TX
6. Department of Animal Science; University of Kentucky; Lexington KY