CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 3,2003, Pages 178-179, doi:10.3760/j.issn:0529-567X.2003.03.019
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 3,2003, Pages 129-131, doi:10.3760/j.issn:0529-567X.2003.03.001
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 3,2003, Pages 184-186, doi:10.3760/j.issn:0529-567X.2003.03.022
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 3,2003, Pages 132-135, doi:10.3760/j.issn:0529-567X.2003.03.002
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 3,2003, Pages 165-166, doi:10.3760/j.issn:0529-567X.2003.03.011