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Bolar DS, Levin DL, Hopkins SR, Frank LF, Liu TT, Wong EC, Buxton RB.Bolar DS, et al. Among authors: wong ec.Magn Reson Med. 2006 Jun;55(6):1308-17. doi: 10.1002/mrm.20891.Magn Reson Med. 2006.PMID: 16680681Free article.