共 15 条
- [1] Ashley D J, 1966, J Obstet Gynaecol Br Commonw, V73, P382
- [2] CHRISTOPHERSON WM, 1962, JAMA-J AM MED ASSOC, V182, P179
- [4] FIDLER H. K., 1968, J OBSTET GYNAECOL BRIT COMMONW, V75, P392
- [6] HAMMOND EC, 1968, CANCER, V22, P1096, DOI 10.1002/1097-0142(196811)22:6<1096::AID-CNCR2820220604>3.0.CO
- [7] 2-7
- [8] KJELLGREN O, 1955, Acta Obstet Gynecol Scand, V34, P249
- [9] Lagerlof B, 1975, Lakartidningen, V72, P1089