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El-Halawaty S, Rizk A, Kamal M, Aboulhassan M, Al-Sawah H, Noah O, Al-Inany H.El-Halawaty S, et al.Reprod Biomed Online. 2007 Nov;15(5):495-9. doi: 10.1016/s1472-6483(10)60379-3.Reprod Biomed Online. 2007.PMID: 18028738Clinical Trial.