1. Diabetes Center, Department of Internal Medicine, Amsterdam University Medical Centers, Location VUMC, the Netherlands (R.A.S., A.C.H., C.M.M., D.H.v.R.).
2. Division of Nephrology and Transplantation, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, the Netherlands (F.G., E.J.H.).
3. Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, the Netherlands (D.J.T., H.J.L.H.).
4. Department of Nephrology and Hypertension, University Medical Center, Utrecht, the Netherlands (M.M.K., J.A.J.).