<?xml version='1.0' encoding='UTF-8'?><xml><records><record><source-app name="HighWire" version="7.x">Drupal-HighWire</source-app><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cunningham, Muriel</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Valderrabano, Miguel</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Atrial Fibrillation</style></title><secondary-title><style face="normal" font="default" size="100%">MD Conference Express</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2007-05-01 00:00:00</style></date></pub-dates></dates><pages><style  face="normal" font="default" size="100%">25-26</style></pages><abstract><style  face="normal" font="default" size="100%">Atrial fibrillation (AF) is the most common arrhythmia, yet its etiology is still not completely understood. It is becoming clear, however, that the mechanisms involved in recent onset AF may not be identical to those occurring later in the course of AF. Thus patients' treatment needs vary.</style></abstract><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">7</style></volume></record></records></xml>