CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 06,2001, Pages 325-327, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 06,2001, Pages 328-329, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 06,2001, Pages 330-332, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 06,2001, Pages 333-335, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 06,2001, Pages 336-337, Dol: