Association between once- and twice-daily direct oral anticoagulant adherence in nonvalvular atrial fibrillation patients and rates of ischemic stroke. (15th July 2016) - Alberts, Mark J.; Peacock, W. Frank; Fields, Larry E.; Bunz, Thomas J.; Nguyen, Elaine; Milentijevic, Dejan; Schein, Jeff R.; Coleman, Craig I.