共 14 条
- [2] BOOG G, 1974, REV FR GYNECOL OBSTE, V69, P19
- [3] CAMPBELL S, 1968, Journal of Obstetrics and Gynaecology of the British Commonwealth, V75, P568
- [4] Campbell S, 1974, Clin Perinatol, V1, P507
- [5] Christie A. D., 1974, 2nd World Congress on Ultrasonics in Medicine, P171
- [6] DAVISON JM, 1973, J OBSTET GYN BR COMM, V80, P769
- [7] HANSMAN M, 1972, 5E DEUTSCHER K PERIN, V4, P330
- [8] IANNIRUBERTO A, 1971, OBSTET GYNECOL, V37, P689
- [9] LUNT RM, 1974, J OBSTET GYN BR COMM, V81, P682
- [10] SCHLENSKER KH, 1972, 5E DEUTSCH K PER MED, V5, P351