CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 43, Issue 5,2008, Pages 377-379, doi:10.3321/j.issn:0529-567X.2008.05.016
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 43, Issue 5,2008, Pages 399, doi:10.3321/j.issn:0529-567X.2008.05.025
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 43, Issue 5,2008, Pages 346-351, doi:10.3321/j.issn:0529-567X.2008.05.007
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 43, Issue 5,2008, Pages 375-376, doi:10.3321/j.issn:0529-567X.2008.05.015
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 43, Issue 5,2008, Pages 370-371, doi:10.3321/j.issn:0529-567X.2008.05.013