共 78 条
[31]
HERTZ RH, 1980, OBSTET GYNECOL, V56, P129
[36]
HUTTON L, 1983, NEW YORK STATE J MED, V83, P857
[40]
KELLY J V, 1976, Clinical Obstetrics and Gynecology, V19, P595, DOI 10.1097/00003081-197609000-00009