ECG Quiz 61 Johnson Francis | December 23, 2019 | ECG / Electrophysiology, ECG Library | No Comments ECG Quiz 61 Click here for the discussion Related Posts Ultra Rapid delayed rectifier potassium current blockers in AF No Comments | Mar 9, 2010 ECG Quiz 34 No Comments | Feb 27, 2009 Atrial flutter ECG No Comments | Feb 14, 2011 Acute anterior wall myocardial infarction with RBBB No Comments | Aug 13, 2009 About The Author Johnson Francis Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal