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Sivan E, Dulitzky M, Lipitz S, Hamiel-Pinchas O, Reichman B, Mashiach S, Achiron R.Sivan E, et al. Among authors: achiron r.Gynecol Obstet Invest. 1995;40(1):19-23. doi: 10.1159/000292295.Gynecol Obstet Invest. 1995.PMID: 7557637