Safety of percutaneous left atrial appendage closure: results from the Watchman Left Atrial Appendage System for Embolic Protection in Patients with AF (PROTECT AF) clinical trial and the Continued Access Registry.
Circulation. 2011 Feb 1;123(4):417-24. doi: 10.1161/CIRCULATIONAHA.110.976449. Epub 2011 Jan 17. Circulation. 2011. PMID: 21242484 Clinical Trial.