共 20 条
[1]
BRENNER RW, 1967, OBSTET GYNECOL, V29, P71
[3]
CHOW, 1975, AM J OBSTET GYNECOL, V122, P876
[4]
DAWOOD MY, 1975, OBSTET GYNECOL, V46, P429
[5]
DISCHE FE, 1974, J OBSTET GYN BR COMM, V81, P724
[6]
FRY R, 1980, S AFR MED J, V57, P1041
[7]
GRABER CD, 1979, OBSTET GYNECOL, V54, P558
[8]
GUPTA PK, 1976, ACTA CYTOL, V20, P295
[9]
HENDERSON SR, 1973, OBSTET GYNECOL, V41, P726
[10]
JONES MC, 1979, ACTA CYTOL, V23, P282