共 22 条
[2]
Anderson A B, 1968, J Obstet Gynaecol Br Commonw, V75, P300
[4]
BONDI JZ, 1903, CENTRALBL GYNEKOL, V27, P633
[5]
BROSENS I, 1966, BRIT J OBSTET GYNAEC, V72, P342
[8]
Gusdon J P Jr, 1972, Am J Obstet Gynecol, V112, P62
[10]
HASTWELL GB, 1975, LANCET, V1, P349