European Journal of Obstetrics & Gynecology and Reproductive Biology
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 58 > 2 > 199-202
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 58 > 2 > 199-202
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1996 > 66 > 2 > 187-191