ECG Quiz 50 Johnson Francis | March 18, 2019 | ECG / Electrophysiology, ECG Library | No Comments ECG Quiz 50 Click on the image for a larger view Please click here for the discussion Related Posts Lithium and sinus node dysfunction No Comments | Mar 31, 2010 Preexcitation No Comments | Feb 27, 2009 ST elevation during treadmill test No Comments | Jan 31, 2010 What is double sequential defibrillation? No Comments | Feb 19, 2022 About The Author Johnson Francis Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal Add a CommentYou must be logged in to post a comment.