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Erlich SA, Tymianski M, Kiehl TR.Erlich SA, et al. Among authors: kiehl tr.Clin Neurol Neurosurg. 2009 Jun;111(5):467-71. doi: 10.1016/j.clineuro.2009.01.001. Epub 2009 Feb 5.Clin Neurol Neurosurg. 2009.PMID: 19200646
George KJ, Lau A, Ellis M, Kiehl TR, Fehlings MG.George KJ, et al. Among authors: kiehl tr.Surg Neurol Int. 2012;3:60. doi: 10.4103/2152-7806.97004. Epub 2012 Jun 9.Surg Neurol Int. 2012.PMID: 22754725Free PMC article.