1. Novo Nordisk Foundation Center for Basic Metabolic Research (K.V.G., C.F.R., B.S., M.S.E., A.N.M., J.P., M.K.N., K.L.E., F.B., J.J.H., B.H., T.W.S.), Copenhagen DK-2200, Denmark
2. Section for Metabolic Receptology and Enteroendocrinology; Laboratory for Molecular Pharmacology (K.V.G., C.F.R., M.S.E., A.N.M., M.K.N., K.L.E., B.H., T.W.S.), Copenhagen DK-2200, Denmark
3. Department of Neuroscience and Pharmacology; and Department of Biomedical Sciences (B.S., J.P., S.S.P., J.J.H.), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark;
4. Department of Molecular and Clinical Medicine (F.S., F.B.), Sahlgrenska Center for Cardiovascular and Metabolic Research/Wallenberg Laboratory, University of Gothenburg, 413 45 Gothenburg, Sweden
5. Danish Diabetes Academy (M.S.E.), 5000 Odense, Denmark
6. Merck Research Laboratories (A.R.N., T.K., A.D.H.), Kenilworth, NJ 07033
7. Department of Pharmacology (S.O.), Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany