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Levy EI, Boulos AS, Hanel RA, Tio FO, Alberico RA, Fronckowiak MD, Nemes B, Paciorek AM, Guterman LR, Hopkins LN.Levy EI, et al. Among authors: hanel ra.J Neurosurg. 2003 Mar;98(3):544-53. doi: 10.3171/jns.2003.98.3.0544.J Neurosurg. 2003.PMID: 12650426
Levy EI, Hanel RA, Lau T, Koebbe CJ, Levy N, Padalino DJ, Malicki KM, Guterman LR, Hopkins LN.Levy EI, et al. Among authors: hanel ra.J Neurosurg. 2005 Jan;102(1):29-37. doi: 10.3171/jns.2005.102.1.0029.J Neurosurg. 2005.PMID: 15658093
Levy EI, Ecker RD, Thompson JJ, Rosella PA, Hanel RA, Guterman LR, Hopkins LN.Levy EI, et al. Among authors: hanel ra.Neurosurg Focus. 2005 Jan 15;18(1):e3. doi: 10.3171/foc.2005.18.1.4.Neurosurg Focus. 2005.PMID: 15669797Review.
Hanel RA, Levy EI, Guterman LR, Hopkins LN.Hanel RA, et al.Neurosurg Clin N Am. 2005 Apr;16(2):263-78, viii. doi: 10.1016/j.nec.2004.08.005.Neurosurg Clin N Am. 2005.PMID: 15694160Review.No abstract available.