共 14 条
[2]
BRESLOW NE, 1980, IARC SCI PUBL, V32, P259
[3]
CHEZ RA, 1983, CONT OBSTET GYNE SEP, P163
[5]
GOLDSTUCK ND, 1979, PRACTITIONER, V223, P647
[7]
HOWARD G, 1972, LANCET, V2, P1339
[8]
JOHNSTONE FD, 1976, BRIT MED J, V4, P68
[9]
LUI DTY, 1975, BRIT J OBSTET GYNAEC, V82, P246
[10]
OTT ER, 1977, CERVICAL DILATION RE, P85