共 14 条
- [2] BERKOWITZ RL, 1981, OBSTET GYNECOL, V57, P33
- [3] BOWMAN JM, 1976, OBSTET GYNECOL, V52, P1
- [5] DECRESPIGNY LC, 1985, OBSTET GYNECOL, V66, P529
- [6] DEVORE GR, 1981, FETOSCOPY, P51
- [8] HOBBINS JC, 1985, AM J OBSTET GYNECOL, V152, P1
- [9] LILEY AW, 1961, AM J OBSTET GYNECOL, V82, P1359