共 9 条
[2]
Anjaneyulu R, 1988, ACTA OBSTET GYNECO S, V145, P9
[3]
Bhattacharya P, 1988, ACTA OBSTET GYNECO S, V145, P13
[4]
DEVI PK, 1988, ACTA OBSTET GYNECO S, V145, P7
[5]
GREEN K, 1977, CONTRACEPTION, V14, P1013
[6]
GSAPO AI, 1979, PROSTAGLANDINS, V17, P283
[7]
Nelson G H, 1983, J Med Assoc Ga, V72, P703
[8]
Royston E, 1982, World Health Stat Q, V35, P52
[9]
Royston E, 1989, PREVENTING MATERNAL