CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 39, Issue 5,2004, Pages 356, doi:10.3760/j.issn:0529-567X.2004.05.029
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 39, Issue 5,2004, Pages 352-353, doi:10.3760/j.issn:0529-567X.2004.05.020
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 39, Issue 5,2004, Pages 347-348, doi:10.3760/j.issn:0529-567X.2004.05.017
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 39, Issue 5,2004, Pages 311-314, doi:10.3760/j.issn:0529-567X.2004.05.007
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 39, Issue 5,2004, Pages 349, doi:10.3760/j.issn:0529-567X.2004.05.018