共 12 条
[1]
BOBROW ML, 1962, OBSTET GYNECOL, V20, P500
[2]
CADKIN A V, 1977, Clinical Obstetrics and Gynecology, V20, P265, DOI 10.1097/00003081-197706000-00007
[3]
CLARK JFJ, 1975, J REPROD MED, V14, P30
[6]
HANEY AF, 1976, NEW ENGL J MED, V294, P1186
[9]
PIIROINEN O, 1975, ACTA OBSTET GYNECO S, P1
[10]
PRITCHARD JA, 1976, WILLIAMS OBSTETRICS, P431