Outcomes of anticoagulated patients with atrial fibrillation treated with or without antiplatelet therapy - A pooled analysis from the PREFER in AF and PREFER in AF PROLONGATON registries - Patti, Giuseppe; Pecen, Ladislav; Lucerna, Markus; Huber, Kurt; Rohla, Miklos; Renda, Giulia; Siller-Matula, Jolanta; Schnabel, Renate B.; Cemin, Roberto; Kirchhof, Paulus; De Caterina, Raffaele (International Journal of Cardiology, 2018)