1. Department of Internal Medicine and Consiglio Nazionale delle Ricerche Institute of Clinical Physiology (E.F., A.N.), University of Pisa, I-56100 Pisa, Italy
2. Institut National de la Santé et de la Recherche Médicale (B.B.), U 780-IFR69, F-94807 Villejuif, France
3. Department of Academic Medical Unit (S.W.C.), The Royal London Hospital, London E1 1BB, United Kingdom
4. Department of Extramuraal Geneeskundig Onderzoek (EMGO) Institute (J.M.D.), Vrije Universiteit Medical Center, 1081 BV Amsterdam, The Netherlands
5. Department of Consiglio Nazionale delle Ricerche Institute of Biomedical Engineering (A.M.), I-35127 Padova, Italy
6. Department of Medicine (J.N.), Trinity College, Dublin 2, Ireland
7. Department of Medicine (M.W.), University of Newcastle upon Tyne, Newcastle upon Tyne NE2 4HQ, United Kingdom
8. Department of Endocrinology M (H.B.-N.), Odense University Hospital, DK-5000 Odense, Denmark