Warfarin versus aspirin for prevention of cognitive decline in atrial fibrillation: randomized controlled trial (Birmingham Atrial Fibrillation Treatment of the Aged Study).
Journal article published in 2014 by
N. Mavaddat,
A. Roalfe,
K. Fletcher,
Lip Gy,
G. Y. H. Lip,
Hobbs Fd,
F. D. R. Hobbs,
D. Fitzmaurice,
J. Mant 
