European Journal of Obstetrics & Gynecology and Reproductive Biology
European Journal of Obstetrics and Gynecology > 2006 > 124 > 1 > 98-100
European Journal of Obstetrics and Gynecology > 2006 > 125 > 1 > 129-133
European Journal of Obstetrics and Gynecology > 2006 > 125 > 2 > 165-170