1. From the Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium (Z.-Y.Z., J.A.S.)
2. Division of Cardiology, University Hospitals Leuven, Leuven, Belgium (T.V., P.V.)
3. Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands (J.A.S.).