1. Department of Medicine (Endocrinology, Metabolism and Diabetes Section) (D.F., M.D.L., F.A., K.S., M.L.), University of Wales College of Medicine, Heath Park, Cardiff CF14 4XN, United Kingdom
2. Medizinische Klinik III (R.P.), Universität Leipzig, Philipp-Rosenthal Strasse 27, 04103 Leipzig, Germany
3. Department of Pathology (D.W.-T.), University of Wales College of Medicine, Heath Park, Cardiff CF14 4XN, United Kingdom
4. Department of Medicine (M.E.), University of Birmingham, Queen Elizabeth Hospital, Birmingham B15 2TH, United Kingdom