00502nas a2200169   4500000000100000000000100001008004100002100001900043700001500062700001400077700001600091700001600107245017700123300001100300490000700311022001400318       2015                            d1 aH. van den Ham1 aO. Klungel1 aD. Singer1 aH. Leufkens1 aT. van Staa00aComparative Performance of ATRIA, CHADS2, and CHA2DS2-VASc Risk Scores Predicting Stroke in Patients With Atrial Fibrillation: Results From a National Primary Care Database  a1851-90 v66  a0735-1097