共 11 条
- [1] BISHOP EH, 1964, OBSTET GYNECOL, V24, P266
- [2] CHEN YP, 1968, OBSTET GYNECOL, V8
- [3] FRIEDMAN EA, 1970, OBSTET GYNECOL, V36, P558
- [4] FRIEDMAN EA, 1967, LABOR CLINICAL EVALU, P27
- [5] FRIEDMAN EA, 1955, OBSTET GYNECOL, V6, P568
- [6] HERZL M, 1976, OBSTET GYNECOL, V47, P511
- [9] STUDD J, 1975, BMJ-BRIT MED J, V2, P545, DOI 10.1136/bmj.2.5970.545
- [10] STUDD JW, 1981, CONT OBSTET GYNECOL, V18, P25