European Journal of Obstetrics & Gynecology and Reproductive Biology
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 62 > 1 > 135-137
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 62 > 1 > 115-119
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 62 > 1 > 145-147