CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 11,2001, Pages 645-646, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 11,2001, Pages 647-650, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 11,2001, Pages 651-653, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 11,2001, Pages 654-656, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 36, Issue 11,2001, Pages 657-659, Dol: