1. Department of Clinical Sciences (A.L., P.S., H.M., L.G., N.W.), Lund University Diabetes Centre, Lund University, SE-205 02 Malmö, Sweden;
2. Aleris Obesitas (A.L., J.H.), SE-222 70 Lund, Sweden
3. Department of Surgery (M.E., J.H.), Lund University, SE-22 184 Lund, Sweden;