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International Journal of Gynecology and Obstetrics > 1995 > 51 > 3 > 239-245
International Journal of Gynecology and Obstetrics > 1995 > 51 > 2 > 133-140
International Journal of Gynecology and Obstetrics > 1995 > 51 > 3 > 239-245
International Journal of Gynecology and Obstetrics > 1995 > 51 > 2 > 133-140