RT Journal Article SR Electronic A1 Rizzo, Toni T1 Watchman LAA Closure Device in Patients with AF JF MD Conference Express YR 2014 FD SAGE Publications VO 14 IS 21 SP 9 OP 10 DO 10.1177/155989771421003 UL http://mdc.sagepub.com/content/14/21/9.abstract AB This article presents the results from the Watchman Left Atrial Appendage System for Embolic Protection in Patients With Atrial Fibrillation trial [PROTECT AF; NCT00129545] that compared the Watchman left atrial appendage device with warfarin therapy for patients with atrial fibrillation.