JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 24, Issue 9,2008, Pages 544-547, doi:10.3969/j.issn.1003-6946.2008.09.012
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 24, Issue 9,2008, Pages 557-559, doi:10.3969/j.issn.1003-6946.2008.09.016
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 24, Issue 9,2008, Pages 541-543,插1, doi:10.3969/j.issn.1003-6946.2008.09.011
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 24, Issue 9,2008, Pages 575-576, doi:10.3969/j.issn.1003-6946.2008.09.029
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 24, Issue 9,2008, Pages 518-520, doi:10.3969/j.issn.1003-6946.2008.09.003