CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 1,2003, Pages 29-30, doi:10.3760/j.issn:0529-567X.2003.01.010
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 1,2003, Pages 52-54, doi:10.3760/j.issn:0529-567X.2003.01.023
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 1,2003, Pages 14-16, doi:10.3760/j.issn:0529-567X.2003.01.005
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 1,2003, Pages 46, doi:10.3760/j.issn:0529-567X.2003.01.027
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 38, Issue 1,2003, Pages 43-44, doi:10.3760/j.issn:0529-567X.2003.01.019