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Abdallah A, Abdel-Hakiem M, El-Feel A.Abdallah A, et al.Arab J Urol. 2014 Sep;12(3):229-33. doi: 10.1016/j.aju.2014.05.003. Epub 2014 Jun 11.Arab J Urol. 2014.PMID: 26019955Free PMC article.