00505nas a2200181   4500000000100000008004100001100001900042700001400061700001500075700002100090700001700111700001700128700001300145700001400158700001500172245012200187022001400309       2019                            d1 aS. Ramagopalan1 aS. Graham1 aR. Carroll1 aM. Raluy-Callado1 aB. Nordstrom1 aR. Donaldson1 aC. Colby1 aF. Mehmud1 aR. Alikhan00aDiscontinuation and primary care visits in nonvalvular atrial fibrillation patients treated with apixaban or warfarin  a2042-6305