1. Department of Cardiovascular and Thoracic Surgery , Faculty of Medicine, , 47000, Sungai Buloh, Selangor , Malaysia
2. Universiti Teknologi MARA (UiTM) , Faculty of Medicine, , 47000, Sungai Buloh, Selangor , Malaysia
3. Department of Surgery , Faculty of Medicine, , 47000, Sungai Buloh, Selangor , Malaysia