1. Kuratorium für Dialyse Kidney Center, Munich, Germany (J.F.E.M.).
2. Department of Nephrology, Friedrich Alexander University of Erlangen, Germany (J.F.E.M.).
3. Division of Endocrinology, Tulane University Health Sciences Center, School of Medicine, New Orleans, LA (V.F.).
4. Diabetes Unit, Hadassah Hebrew University Hospital, Jerusalem, Israel (O.M., I.R.).
5. Novo Nordisk A/S, Søborg, Denmark (B.G., T.I., B.J.v.S.).
6. Imperial Clinical Trials Unit, Imperial College London, UK (N.R.P.).