Effectiveness and Safety of Apixaban Compared With Rivaroxaban for Patients With Atrial Fibrillation in Routine Practice: A Cohort Study. - Fralick, Michael; Colacci, Michael; Schneeweiss, Sebastian; Huybrechts, Krista F.; Lin, Kueiyu Joshua; Gagne, Joshua J. (Annals of Internal Medicine, 2020)