CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY , Volume 36, Issue 7,2001, Pages 433, doi:10.3760/j.issn:0529-567X.2001.07.017
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY , Volume 36, Issue 7,2001, Pages 444, doi:10.3760/j.issn:0529-567X.2001.07.026
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 7,2001, Pages 408-410, doi:10.3760/j.issn:0529-567X.2001.07.007
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY , Volume 36, Issue 7,2001, Pages 430-431, doi:10.3760/j.issn:0529-567X.2001.07.015
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 7,2001, Pages 389-391, doi:10.3760/j.issn:0529-567X.2001.07.001