CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 07,2010, Pages 481-487, Dol:10.3760/cma.j.issn.0529-567x.2010.07.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 07,2010, Pages 488-491, Dol:10.3760/cma.j.issn.0529-567x.2010.07.002
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 07,2010, Pages 492-496, Dol:10.3760/cma.j.issn.0529-567x.2010.07.003
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 07,2010, Pages 497-500, Dol:10.3760/cma.j.issn.0529-567x.2010.07.004
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 45, Issue 07,2010, Pages 501-505, Dol:10.3760/cma.j.issn.0529-567x.2010.07.005