European Journal of Obstetrics & Gynecology and Reproductive Biology
European Journal of Obstetrics and Gynecology > 2013 > 170 > 1 > 77-81
European Journal of Obstetrics and Gynecology > 2013 > 170 > 2 > 348-351
European Journal of Obstetrics and Gynecology > 2013 > 170 > 1 > 77-81
European Journal of Obstetrics and Gynecology > 2013 > 170 > 2 > 348-351