CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 09,2010, Pages 641-643, Dol:10.3760/cma.j.issn.0529-567x.2010.09.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 09,2010, Pages 644-645, Dol:10.3760/cma.j.issn.0529-567x.2010.09.002
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 09,2010, Pages 646-651, Dol:10.3760/cma.j.issn.0529-567x.2010.09.003
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 09,2010, Pages 652-657, Dol:10.3760/cma.j.issn.0529-567x.2010.09.004
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 09,2010, Pages 658-663, Dol:10.3760/cma.j.issn.0529-567x.2010.09.005