{Reference Type}: Case Reports
{Title}: A narrow complex tachycardia with variable R-R intervals: What is the mechanism?
{Author}: Luther V;Wright I;Lefroy D;Ng FS;
{Journal}: J Cardiovasc Electrophysiol
{Volume}: 29
{Issue}: 8
{Year}: 08 2018
{Factor}: 2.942
{DOI}: 10.1111/jce.13618
{Abstract}: