共 12 条
[1]
ALTEMEIER WA, 1981, SURG GYNECOL OBSTET, V153, P481
[2]
BERGDOLL MS, 1981, LANCET, V1, P1017
[4]
FRIEDRICH EG, 1980, OBSTET GYNECOL, V55, P149
[5]
FULLER AF, 1980, NEW ENGL J MED, V303, P881
[8]
REINGOLD AL, 1982, ANN INTERN MED, V96, P875, DOI 10.7326/0003-4819-96-6-875