共 27 条
[3]
FISHER DA, 1970, PEDIATRICS, V46, P208
[4]
FRANTANTONI JC, 1969, NEW ENGL J MED, V280, P686
[5]
FREDA VJ, 1965, AM J OBSTET GYNECOL, V92, P341
[7]
Fuchs F, 1966, Clin Obstet Gynecol, V9, P425, DOI 10.1097/00003081-196606000-00010