1. Division of Cardiovascular Medicine, Stanford University School of Medicine, 300 Pasteur Drive Room H2170, Stanford, CA, USA
2. Stanford Cardiovascular Institute, 300 Pasteur Drive, Stanford, CA, USA
3. KU Leuven Department of Cardiovascular Sciences, Research Unit Hypertension and Cardiovascular Epidemiology, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Block D, Leuven, Belgium