1. Department of Cardiology, Akbar Niazi Teaching Hospital, Islamabad, Pakistan
2. Department of Medicine, Services Hospital, Lahore, Pakistan
3. Department of Cardiology, Lady Reading Hospital, Peshawar, Pakistan
4. Department of General Surgery, East Lancashire NHS Trust, Lancashire, UK
5. Department of Medicine, Allama Iqbal Medical College, Lahore, Pakistan
6. Department of Cardiology, Mardan Medical Complex, Mardan, Pakistan
7. Department of Cardiology, Abbas Institute of Medical Sciences, Muzaffarabad, Pakistan
8. Department of Clinical Electrophysiology, Cardiovascular Analytics Group, Hong Kong, China