Narrow QRS Tachycardia With Varying VA and RR Intervals: What Is the Mechanism?

Nair, KKMNamboodiri, NBanavalikar, BValaparambil, AThajudeen, ATharakan, J2017-03-102017-03-10201627 ,10;1245-124610.1111/jce.13001https://dspace.sctimst.ac.in/handle/123456789/10113Cardiovascular System & CardiologyNarrow QRS Tachycardia With Varying VA and RR Intervals: What Is the Mechanism?