CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 04,2010, Pages 241-242, Dol:10.3760/cma.j.issn.0529-567x.2010.04.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 04,2010, Pages 269-272, Dol:10.3760/cma.j.issn.0529-567x.2010.04.008
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 04,2010, Pages 273-277, Dol:10.3760/cma.j.issn.0529-567x.2010.04.009
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 04,2010, Pages 278-282, Dol:10.3760/cma.j.issn.0529-567x.2010.04.010
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 04,2010, Pages 283-286, Dol:10.3760/cma.j.issn.0529-567x.2010.04.011