共 23 条
[1]
ABEL S, 1958, B MATERNAL WELFARE, V5, P12
[2]
BISHOP EH, 1955, OBSTET GYNECOL, V5, P519
[3]
BISHOP EH, 1964, OBSTET GYNECOL, V24, P266
[4]
BURNETT JE, 1966, OBSTET GYNECOL, V28, P479
[5]
DELEE JB, 1928, PRINCIPLES PRACTICE, P137
[6]
EASTMAN NJ, 1966, WILLIAMS OBSTETRICS, P835
[7]
FLOYD WS, 1961, OBSTET GYNECOL, V18, P380
[10]
FRIEDMAN EA, 1966, OBSTET GYNECOL, V28, P495