共 10 条
- [1] BARKLEY MD, 1967, NC MED J, V28, P480
- [3] MORTIMER C W, 1968, Journal of Obstetrics and Gynaecology of the British Commonwealth, V75, P741
- [5] SHELDON RS, 1963, AM J OBSTET GYNEC, V87, P505
- [7] SHNIEDER P, 1946, AM J SURG, V72, P526
- [8] SHNIEDER P, 1957, AM J OBSTET GYNEC, V93, P27
- [9] WHITTLE MJ, 1976, BRIT MED J, V3, P795
- [10] WOODFORD SJ, 1978, BR MED J, V1, P825