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Lee M, Zaharchuk G, Guzman R, Achrol A, Bell-Stephens T, Steinberg GK.Lee M, et al. Among authors: steinberg gk.Neurosurg Focus. 2009 Apr;26(4):E5. doi: 10.3171/2009.1.FOCUS08300.Neurosurg Focus. 2009.PMID: 19335131Free PMC article.Review.
Guzman R, Lee M, Achrol A, Bell-Stephens T, Kelly M, Do HM, Marks MP, Steinberg GK.Guzman R, et al. Among authors: steinberg gk.J Neurosurg. 2009 Nov;111(5):927-35. doi: 10.3171/2009.4.JNS081649.J Neurosurg. 2009.PMID: 19463046