1. Division of Endocrinology (M.K.L., S.M., S.S., C.O.), Department of Internal Medicine, Sahlgrenska University Hospital, S-41345 Gothenburg, Sweden
2. Department of Medical Nutrition and Department of BioSciences (J.-Å.G., H.G., K.D.-W.), Karolinska Institute, Novum, S-14157 Huddinge, Sweden