1. Department of Cardiology and Vascular Medicine; Faculty of Medicine; University of Indonesia, National Cardiovascular Center Harapan Kita Jakarta; Indonesia
2. Department of Cardiology; Faculty of Medicine; University Clinic of Cardiology, University of St Cyril & Methodius; Vodnjanska 17 Skopje Macedonia
3. Department of Cardiovascular Science; Apex Heart Institute; Ahmedabad Gujarat India
4. Department of Cardiology; Tergooi Hospital; Blaricum The Netherlands
5. Penn State Heart and Vascular Institute, Pennsylvania State University College of Medicine; Hershey Pennsylvania USA