CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 02,2011, Pages 81-83, Dol:10.3760/cma.j.issn.0529-567x.2011.02.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 02,2011, Pages 84-87, Dol:10.3760/cma.j.issn.0529-567x.2011.02.002
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 02,2011, Pages 88-93, Dol:10.3760/cma.j.issn.0529-567x.2011.02.003
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 02,2011, Pages 94-100, Dol:10.3760/cma.j.issn.0529-567x.2011.02.004
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 46, Issue 02,2011, Pages 101-104, Dol:10.3760/cma.j.issn.0529-567x.2011.02.005