共 10 条
[2]
Food and Drug Administration U.S., 1996, Final Rule, V21, P8781
[4]
HOMOCYSTEINE METABOLISM IN PREGNANCIES COMPLICATED BY NEURAL-TUBE DEFECTS
[J].
LANCET,
1995, 345 (8943)
:149-151
[7]
Persad VL, 2002, CAN MED ASSOC J, V167, P241
[8]
WALD N, 1991, LANCET, V338, P131
[10]
WILLIAMS IJ, 2002, TERATOLOGY, V66, P44