1. Department of Cardiology, Hanoi Medical University, 1 Ton-That-Tung Street, Dong-Da District, 10000 Hanoi, Vietnam
2. Vietnam National Heart Institute, Bach Mai Hospital, 78 Giai-Phong Avenue, 10000 Hanoi, Vietnam
3. Umeå Centre for Global Health Research, Umeå University, 90187 Umeå, Sweden
4. School of Population Health, Faculty of Medical and Health Sciences, University of Auckland, Auckland 1142, New Zealand