APA

Reiffel J. A., . (20120313). Letter by Reiffel regarding article, "Risk of bleeding with 2 doses of dabigatran compared with warfarin in older and younger patients with atrial fibrillation: an analysis of the Randomized Evaluation of Long-Term Anticoagulant Therapy (RE-LY) trial". : Circulation.

Chicago

Reiffel James A, . 20120313. Letter by Reiffel regarding article, "Risk of bleeding with 2 doses of dabigatran compared with warfarin in older and younger patients with atrial fibrillation: an analysis of the Randomized Evaluation of Long-Term Anticoagulant Therapy (RE-LY) trial". : Circulation.

Harvard

Reiffel J. A., . (20120313). Letter by Reiffel regarding article, "Risk of bleeding with 2 doses of dabigatran compared with warfarin in older and younger patients with atrial fibrillation: an analysis of the Randomized Evaluation of Long-Term Anticoagulant Therapy (RE-LY) trial". : Circulation.

MLA

Reiffel James A, . Letter by Reiffel regarding article, "Risk of bleeding with 2 doses of dabigatran compared with warfarin in older and younger patients with atrial fibrillation: an analysis of the Randomized Evaluation of Long-Term Anticoagulant Therapy (RE-LY) trial". : Circulation. 20120313.