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Sagher O, Malik JM, Lee JH, Shaffrey CI, Shaffrey ME, Szabo TA, Jane JA.Sagher O, et al. Among authors: shaffrey me, shaffrey ci.Neurosurgery. 1993 Nov;33(5):926-8; discussion 928-9. doi: 10.1227/00006123-199311000-00025.Neurosurgery. 1993.PMID: 8264896