Specific risk scores for specific purposes: use CHA2DS2-VASc for assessing stroke risk, and use HAS-BLED for assessing bleeding risk in atrial fibrillation.

Publisher Rights Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Thrombosis Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Thrombosis Research [VOL 134, ISSUE 2, August 2014] DOI: 10.1016/j.thromres.2014.06.003