1. Queen’s University; Kingston Canada
2. Schulich School of Medicine & Dentistry, Western University; Kresge Building, Rm. K1 London ON Canada
3. Royal Free Hospital; Cardiology; London UK
4. St Helier Hospital; London UK
5. Royal Free Hospital, Royal Free London NHS Foundation Trust; Cardiology Department; London UK
6. Cochrane Brazil Minas Gerais; Av. Cristiano Ferreira Varella, 555 Muriaé Minas Gerais Brazil 36888-233
7. The Heart Hospital, University College London Hospitals; Centre for Cardiology in the Young; 16-18 Westmoreland Street, London UK W1G 8PH
8. University College London; Institute of Health Informatics Research; London UK
9. Royal Free London NHS Foundation Trust; Barnet General Hospital Cardiology Department; Barnet General Hospital Thames House, Wellhouse Lane Barnet Enfield UK EN5 3DJ
10. Western University; London Canada