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El-Sammak M, Kandil M, El-Hifni S, Hosni R, Ragab M.El-Sammak M, et al.Int J Med Sci. 2004;1(3):181-192. doi: 10.7150/ijms.1.181. Epub 2004 Oct 12.Int J Med Sci. 2004.PMID: 15912197Free PMC article.