CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 6,2011, Pages 463-465, doi:10.3760/cma.j.issn.0529-567x.2011.06.018
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 6,2011, Pages 401-402, doi:10.3760/cma.j.issn.0529-567x.2011.06.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 6,2011, Pages 477-478, doi:10.3760/cma.j.issn.0529-567x.2011.06.023
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 6,2011, Pages 478-479, doi:10.3760/cma.j.issn.0529-567x.2011.06.024
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 6,2011, Pages 441-445, doi:10.3760/cma.j.issn.0529-567x.2011.06.012