1 Department of Cardiac Electrophysiology and Pacing, Christian Medical College and Hospital, Ida Scudder Road, Vellore, Tamil Nadu, 632004, India. Electronic address: anandaroop_lahiri@yahoo.com.
2 Department of Cardiac Electrophysiology and Pacing, Christian Medical College and Hospital, Ida Scudder Road, Vellore, Tamil Nadu, 632004, India. Electronic address: sirishchandrasrinath@gmail.com.
3 Department of Cardiac Electrophysiology and Pacing, Christian Medical College and Hospital, Ida Scudder Road, Vellore, Tamil Nadu, 632004, India. Electronic address: davsuchi@cmcvellore.ac.in.
4 Department of Cardiac Electrophysiology and Pacing, Christian Medical College and Hospital, Ida Scudder Road, Vellore, Tamil Nadu, 632004, India. Electronic address: johnroshanjacob@gmail.com.