BJOG: An International Journal of Obstetrics & Gynaecology
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 84 - 93
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 76 - 83
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 26 - 31
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 39 - 46
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 32 - 38
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 1 > 62 - 68
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 2 > 229 - 233
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 2 > 222 - 224
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 2 > 200 - 211
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 2 > 156 - 162
BJOG: An International Journal of Obstetrics & Gynaecology > 117 > 2 > 216 - 221