Causal Inference From Real-World Data: A Request for Asking the Proper Research Question

J Am Coll Cardiol. 2018 Jul 31;72(5):486-488. doi: 10.1016/j.jacc.2018.05.036.

¹ Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark; Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark. Electronic address: pbn@rn.dk.
² Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark.
³ Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Faculty of Health, Aalborg University, Aalborg, Denmark; Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.

No abstract available

Keywords: atrial fibrillation; comparative effectiveness; oral anticoagulant treatment.

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