JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 8,2005, Pages 483-485, doi:10.3969/j.issn.1003-6946.2005.08.015
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 8,2005, Pages 473-474, doi:10.3969/j.issn.1003-6946.2005.08.011
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 8,2005, Pages 478-481, doi:10.3969/j.issn.1003-6946.2005.08.013
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 8,2005, Pages 475-477, doi:10.3969/j.issn.1003-6946.2005.08.012
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 8,2005, Pages 507-508, doi:10.3969/j.issn.1003-6946.2005.08.025