1. Department of Internal Medicine (A.M.J., A.J.H.M.H., N.C.S., P.W.d.L., C.D.A.S.), Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, 6202 AZ Maastricht, The Netherlands;
2. Department of Internal Medicine, Vrije Universiteit Medical Center Amsterdam (E.H.S., Y.M.S.), 1007 MB Amsterdam, The Netherlands