Oral Anticoagulants and the Risk of Intracranial Hemorrhage
JAMA 312:2562-2563, Vespa, P.M., 2014
Bleeding During Treatment with Aspirin Versus Apixaban in Patients with Atrial Fibrillation Unsuitable for Warfarin
Stroke 43:3291-3297, Flaker, G.,et al, 2012