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Anderson JA, Hirsh J, Yusuf S, Johnston M, Afzal R, Mehta SR, Fox KA, Budaj A, Eikelboom JW.Anderson JA, et al. Among authors: hirsh j.J Thromb Haemost. 2010 Feb;8(2):243-9. doi: 10.1111/j.1538-7836.2009.03705.x. Epub 2009 Nov 26.J Thromb Haemost. 2010.PMID: 19943881Free article.Clinical Trial.