CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 08,2010, Pages 561-563, Dol:10.3760/cma.j.issn.0529-567x.2010.08.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 08,2010, Pages 564-566, Dol:10.3760/cma.j.issn.0529-567x.2010.08.002
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 08,2010, Pages 567-570, Dol:10.3760/cma.j.issn.0529-567x.2010.08.003
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 08,2010, Pages 571-574, Dol:10.3760/cma.j.issn.0529-567x.2010.08.004
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 08,2010, Pages 575-577, Dol:10.3760/cma.j.issn.0529-567x.2010.08.005