1. Department of Clinical Sciences (B.T.Y., T.A.D., P.A.V., S.M., X.J., E.R., C.B.W., M.D.N., C.L.), Lund University Diabetes Centre, Scania University Hospital, 205 02 Malmoe, Sweden;
2. Department of Cell Physiology and Metabolism (C.L.K., C.B.W.), University Medical Center, 1211 Geneva 4, Switzerland