title: The Reality of "Real-World" Data: More Questions Than Answers.
authors.affiliation: Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts. Electronic address: cruff@partners.org.
authors.forename: Christian T
authors.initials: CT
authors.lastname: Ruff
mesh_terms: D000925:Anticoagulants; D001281:Atrial Fibrillation; D020521:Stroke; D014859:Warfarin
chemical_list: D000925:Anticoagulants; D014859:Warfarin
keywords: anticoagulation; atrial fibrillation; hemorrhage; stroke