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Khedr EM, Elbeh KA, Elserogy Y, Khalifa HE, Ahmed MA, Hafez MH, Ali AM, Elfetoh NA.Khedr EM, et al. Among authors: khalifa he.Neurophysiol Clin. 2016 Apr;46(2):135-43. doi: 10.1016/j.neucli.2016.02.003. Epub 2016 Mar 24.Neurophysiol Clin. 2016.PMID: 27016878