共 6 条
[2]
*DEP HLTH SOC SEC, 1995, REP CONF ENQ MAT DEA
[3]
GAUDIER FL, 1995, J REPROD MED, V40, P397
[4]
James DK, 1995, HIGH RISK PREGNANCY, P614
[6]
RIZSK B, 1991, AM J OBSTET GYNECOL, V164, P161