共 14 条
- [1] AITKEN JM, 1974, J OBSTET GYN BR COMM, V81, P150
- [2] BAKKE JL, 1965, PAC MED SURG, V73, P200
- [3] BARR W, 1975, S AFR MED J, V49, P437
- [5] BULLOCK JL, 1975, OBSTET GYNECOL, V46, P165
- [6] CAMPBELL S, 1977, CLIN OBSTET GYNAECOL, V4, P31
- [9] DENNERSTEIN L, 1977, OBSTET GYNECOL, V49, P92