1. Neuroscience Program (L.L.A., S.-J.C.),Iowa State University, Ames, Iowa 50011
2. Department of Animal Science (L.L.A., A.H.T., S.-J.C.), Iowa State University, Ames, Iowa 50011
3. The Dairy Business (D.L.H.), a unit of Monsanto Company, St. Louis, Missouri 63167