CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 41, Issue 03,2006, Pages 145-147, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 41, Issue 03,2006, Pages 148-151, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 41, Issue 03,2006, Pages 152-154, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 41, Issue 03,2006, Pages 155-158, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 41, Issue 03,2006, Pages 159-161, Dol: