in normal samples , the mean ache and bche concentrations were 3.0 u/l ( sem = 9.1 u/l ) and 15.2 u/l ( sem = 1.2 u/l ) in the second trimester , and 1.6 u/l ( sem = 0.1 u/l ) and 7.8 u/l ( sem = 0.6 u/l ) in the third trimester .
C0001044
ache
C0008429
bche