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Ouyang T, Rothfus WE, Ng JM, Challinor SM.Ouyang T, et al. Among authors: rothfus we.Radiol Clin North Am. 2011 May;49(3):549-71, vii. doi: 10.1016/j.rcl.2011.02.012.Radiol Clin North Am. 2011.PMID: 21569910Review.
Kang MD, Escott E, Thomas AJ, Carrau RL, Snyderman CH, Kassam AB, Rothfus W.Kang MD, et al.AJNR Am J Neuroradiol. 2009 Apr;30(4):781-6. doi: 10.3174/ajnr.A1453. Epub 2009 Feb 12.AJNR Am J Neuroradiol. 2009.PMID: 19213828Free PMC article.