03.01.2008
opracowanie na podstawie: Warfarin versus aspirin for stroke prevention in an elderly community population with atrial fibrillation (the Birmingham Atrial Fibrillation Treatment of the Aged Study, BAFTA): a randomised controlled trial
J. Mant, R. Hobbs, K. Fletcher, A. Roalfe, D. Fitzmaurice, G. Lip, E. Murray
The Lancet, 207370: 493–503