1. Department of Cardiothoracic and Vascular Surgery, All India Institute of Medical Sciences, Guwahati, Assam, India
2. Department of Cardiothoracic and Vascular Surgery, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya, India
3. Department of Medicine, All India Institute of Medical Sciences, Guwahati, Assam, India
4. Department of Vascular Surgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
5. Department of Anaesthesiology, Pain and Critical Medicine, All India Institute of Medical Sciences, Guwahati, Assam, India