JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 23, Issue 3,2007, Pages 187-187,插页3-1, doi:10.3969/j.issn.1003-6946.2007.03.027
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 23, Issue 3,2007, Pages 172-174, doi:10.3969/j.issn.1003-6946.2007.03.017
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 23, Issue 3,2007, Pages 170-172, doi:10.3969/j.issn.1003-6946.2007.03.016
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 23, Issue 3,2007, Pages 131-134, doi:10.3969/j.issn.1003-6946.2007.03.002
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 23, Issue 3,2007, Pages 186-186, doi:10.3969/j.issn.1003-6946.2007.03.026