Article PubMed
American heart journal  (2013)

Apixaban versus warfarin in patients with atrial fibrillation according to prior warfarin use: results from the Apixaban for Reduction in Stroke and Other Thromboembolic Events in Atrial Fibrillation trial.

Garcia, David A; Wallentin, Lars; Lopes, Renato D; Thomas, Laine; Alexander, John H; Hylek, Elaine M; Ansell, Jack; Hanna, Michael; Lanas, Fernando; Flaker, Greg; Commerford, Patrick; Xavier, Denis; Vinereanu, Dragos; Yang, Hongqiu; Granger, Christopher B