1. Cape Heart Institute, Chris Barnard Building, University of Cape Town, Faculty of Health Sciences, Cnr Anzio Road and Falmouth Road, 7925, Observatory, Cape Town , South Africa
2. Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Main Road, 7925, Observatory, Cape Town , South Africa
3. Institute for Health Research, University of Notre Dame Australia, 32 Mouat St, Fremantle, Western Australia, 6160 , Australia
4. Eduardo Mondlane University, 3435 Avenida Julius Nyerere, Maputo , Mozambique
5. Centre for Cardiovascular Science, University of Edinburgh, Queens Medical Research Institute, 47 Little France Crescent, Edinburgh, EH4 3RL , UK
6. Centre for Chronic Disease Control, C1/52, Safdarjung Development Area, New Delhi, 110016, India
7. Department of Pediatric Cardiology, Amrita Institute of Medical Sciences and Research Centre , Ponekkara PO, Cochin 682041, Kerala , India
8. Department of Internal Medicine, University Hospital Zurich, University of Zurich , 100 Rämistrasse, 8091 Zurich , Switzerland
9. Facultad de Medicina, Universidad de Buenos Aires, Arenales 2463, Buenos Aires, C1124AAN, Argentina
10. Department of Cardiology, McGovern Medical School, University of Texas Health , 7000 Fannin St, Houston, TX 77030 , USA
11. Department of Cardiology, Faculty of Medicine, University of Lisbon, Av. Prof. Egas Moniz, 1649-028 , Lisboa , Portugal