1. Departments of Molecular and Integrative Physiology (L.Y., O.D.S.) University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;
2. Veterinary Biosciences (P.S.C., D.D.M.) University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;
3. Animal Sciences (R.D.S.) University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;
4. Department of Endocrinology, Metabolism, and Molecular Medicine (J.L.J.), Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611
5. College of Medicine (O.D.S.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;