CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 40, Issue 03,2005, Pages 145-147, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 40, Issue 03,2005, Pages 148-150, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 40, Issue 03,2005, Pages 151-153, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 40, Issue 03,2005, Pages 154-158, Dol:
CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY, Volume 40, Issue 03,2005, Pages 159-163, Dol: