CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 11,2003, Pages 701-702, doi:10.3760/j.issn:0529-567X.2003.11.018
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 11,2003, Pages 702-703, doi:10.3760/j.issn:0529-567X.2003.11.019
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 11,2003, Pages 695-696, doi:10.3760/j.issn:0529-567X.2003.11.014
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 11,2003, Pages 712-714, doi:10.3760/j.issn:0529-567X.2003.11.023
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 11,2003, Pages 700, doi:10.3760/j.issn:0529-567X.2003.11.017