1. Department of Cardiovascular Surgery, Mayo Clinic, 200 1st Street, Rochester, MN 55905, USA
2. Department of Cardiovascular Surgery, AMRI Hospitals, 16 and 17 JC Block, Bidhannagar, Salt Lake, Kolkata 700098, West Bengal, India
3. Department of Cardiac Anesthesia, AMRI Hospitals, 16 and 17 JC Block, Bidhannagar, Salt Lake, Kolkata 700098, West Bengal, India