Authors:
Dr.
Satyendra Tewari, Professor, Department of Cardiology, SGPGI, Lucknow,
Uttar Pradesh. E-mail-
stewari_sgpgi@yahoo.com
Dr. Abhijit Bharali, Senior Resident, Department of Cardiology, SGPGI,
Lucknow, Uttar Pradesh. E-mail-
dr.abhijitbharali@gmail.com