CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 1,2010, Pages 30-34, doi:10.3760/cma.j.issn.0529-567x.2010.01.009
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 1,2010, Pages 22-25, doi:10.3760/cma.j.issn.0529-567x.2010.01.007
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 1,2010, Pages 45-50, doi:10.3760/cma.j.issn.0529-567x.2010.01.013
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 1,2010, Pages 68-70, doi:10.3760/cma.j.issn.0529-567x.2010.01.020
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 1,2010, Pages 35-40, doi:10.3760/cma.j.issn.0529-567x.2010.01.010