European Journal of Obstetrics & Gynecology and Reproductive Biology
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1994 > 57 > 3 > 215-217
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 58 > 2 > 177-181
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1995 > 58 > 2 > 177-181
European Journal of Obstetrics & Gynecology and Reproductive Biology > 1996 > 70 > 2 > 123-127