JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 9,2005, Pages 567-569, doi:10.3969/j.issn.1003-6946.2005.09.020
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 9,2005, Pages 519-522, doi:10.3969/j.issn.1003-6946.2005.09.003
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 9,2005, Pages 571-572, doi:10.3969/j.issn.1003-6946.2005.09.028
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 9,2005, Pages 557-559,插页9-1, doi:10.3969/j.issn.1003-6946.2005.09.016
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 21, Issue 9,2005, Pages 541-544, doi:10.3969/j.issn.1003-6946.2005.09.011