the mfl/efl values were 1.0 +/- 0.7 ( mean +/- standard deviation ) for the control group , 0.94 +/- 0.06 for trisomy 21 fetuses , 0.94 +/- 0.10 for non-trisomy 21 fetuses , and 0.94 +/- 0.08 for the entire group of fetuses with chromosomal abnormalities .
C0013080
trisomy 21
C0008625
chromosomal abnormalities