1. Department of Cardiology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, PR China;
2. Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium;
3. Department of Internal Medicine, College of Health Sciences, University of Abuja, Abuja, Nigeria;
4. The Health Bureau of Gaoyou, Gaoyou, PR China;
5. R&D VitaK Group, Maastricht University, Maastricht, The Netherlands