AuthorsĀ 
Debabrata Bera, DM, Dept Cardiology, RTIICS, Kolkata. India.
Radhey Shyam Joshi, MD, Dept of Cardiology, RTIICS, Kolkata. India.
Mrityunjay Bauri, PGDCC, Dept of Cardiology, RTIICS, Kolkata. India.
Anunay Gupta, VMMC and Safdarjung Hospital, New Delhi, India.