共 9 条
- [1] D'Esopo D. A., 1942, AMER JOUR OBSTET AND GYNECOL, V44, P1
- [2] Farber S, 1931, AM J DIS CHILD, V42, P1372
- [3] GOSSELIN O, 1937, BRUXELLES MED, V17, P1600
- [5] LABATE JS, 1947, AM J OBSTET GYNECOL, V54, P188
- [8] SNYDER FF, 1949, OBSTETRIC ANALGESIA, P29