1. Örebro University, Faculty of Health, Department of Cardiology, Sweden (O.F., F.C.).
2. Department of Cardiology, Skane University Hospital, Clinical Sciences, Lund University, Sweden (M.G., D.E., A.M.).
3. International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka (Z.A.).
4. Department of Cardiology, Aarhus University Hospital, Denmark (E.H.C., L.J.).
5. The Kirby Institute, UNSW Medicine, University of New South Wales, Sydney, Australia (C.R.M.).
6. British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom, and West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Glasgow, United Kingdom (K.G.O.).
7. Cardiocenter, Third Faculty of Medicine, Charles University, and University Hospital Kralovske Vinohrady, Prague, Czech Republic (Z.M.).
8. Pauls Stradins Clinical University Hospital, University of Latvia, Riga (A.E.).
9. LHL-sykehuset Gardermoen, Oslo, Norway (R.M.).
10. International clinical research center, St. Anne University Hospital and Masaryk University, Brno, Czech Republic (O.H.).
11. Rigshospitalet, University of Copenhagen, Denmark (T.E.).
12. Department of Cardiology, Odense University Hospital, Denmark (L.O.J., C.O.F.).
13. Department of Cardiology, Aalborg University Hospital, and Department of Clinical Medicine, Aalborg University, Denmark (S.E.J.).
14. Sahlgrenska University Hospital and Institute of Medicine, Department of molecular and clinical medicine, Gothenburg University, Sweden (O.A.).
15. Västmanlands sjukhus Västerås, Sweden (A.K.).
16. Department of Cardiology, Jönköping, Region Jönköping County, and Department of Health, Medicine and Caring, Linköping University, Sweden (J.L.).
17. Cardiology, Heart Centre, Department of Public Health and Clinical Medicine, Umeå University, Sweden (J.N.).
18. Division of Cardiovascular Medicine, Department of Clinical Sciences, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden (J. Persson).
19. Department of Cardiology, Karlstad Central Hospital, Sweden (P.S.).
20. National Institute of Cardiovascular Diseases, Sher-e-Bangla Nagar, Dhaka, Bangladesh (A.K.K.M.I., A.R.).
21. National Heart Foundation Hospital and Research Institute, Dhaka, Bangladesh (F.M., S.C.).
22. Department of Medical Statistics, London School of Hygiene and Tropical Medicine, United Kingdom (T.C., S.J.P.).
23. Cardiology Unit, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden (J. Pernow).