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Reid MC, Papaleontiou M, Ong A, Breckman R, Wethington E, Pillemer K.Reid MC, et al.Pain Med. 2008 May-Jun;9(4):409-24. doi: 10.1111/j.1526-4637.2008.00428.x. Epub 2008 Mar 11.Pain Med. 2008.PMID: 18346056Free PMC article.Review.