Nair, KKMNamboodiri, NBanavalikar, BNallasivan, RValaparambil, AThajudeen, ATharakan, J2017-03-102017-03-10201639 ,10;1148-114910.1111/pace.12930https://dspace.sctimst.ac.in/handle/123456789/10109Cardiovascular System & Cardiology; EngineeringNarrow QRS Tachycardia with RR Alternans: What Is the Mechanism?