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Williams RL, Fukui MB, Meltzer CC, Swarnkar A, Johnson DW, Welch W.Williams RL, et al. Among authors: fukui mb.AJNR Am J Neuroradiol. 1999 Mar;20(3):381-5.AJNR Am J Neuroradiol. 1999.PMID: 10219401Free PMC article.