1. Laboratory of Mammalian Reproductive Biology and Genomics (K.-B.L., A.B., G.W., G.W.S.), Michigan State University, East Lansing, Michigan 48824
2. Departments of Animal Science (K.-B.L., A.B., G.W., J.J.I., G.W.S.), Michigan State University, East Lansing, Michigan 48824
3. Departments of Physiology (J.J.I., G.W.S.), Michigan State University, East Lansing, Michigan 48824