title: Closing the Oval Door.
authors.affiliation: Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota. Electronic address: holmes.david@mayo.edu.
authors.forename: David R
authors.initials: DR
authors.lastname: Holmes
authors.affiliation: Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
authors.forename: Douglas L
authors.initials: DL
authors.lastname: Packer
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use; D020517:Atrial Appendage; D001281:Atrial Fibrillation; D020521:Stroke
chemical_list: D000925:Anticoagulants
keywords: left atrial appendage occlusion; nonvalvular atrial fibrillation; stroke prevention