A clinical decision support tool for improving adherence to guidelines on anticoagulant therapy in patients with atrial fibrillation at risk of stroke: a cluster-randomized trial in a Swedish primary care setting (the CDS-AF study) - Karlsson, L O; Nilsson, S; Bång, M; Nilsson, L; Charitakis, E; Janzon, M (PLoS Med, 2018)