JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 22, Issue 11,2006, Pages 697-698, doi:10.3969/j.issn.1003-6946.2006.11.022
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 22, Issue 11,2006, Pages 670-672,插页1, doi:10.3969/j.issn.1003-6946.2006.11.012
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 22, Issue 11,2006, Pages 676-676, doi:10.3969/j.issn.1003-6946.2006.11.028
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 22, Issue 11,2006, Pages 681-683, doi:10.3969/j.issn.1003-6946.2006.11.016
JOURNAL OF PRACTICAL OBSTETRICS AND GYNECOLOGY, Volume 22, Issue 11,2006, Pages 650-652, doi:10.3969/j.issn.1003-6946.2006.11.006