the brain content of kynurenic acid was extremely low during the first week of life measuring 15 +/- 3 pmol/g protein ( mean +/- s.e.m . ) , was found to be 320 +/- 31 at 3 months and continued to increase reaching levels of 747 +/- 116 at 18 months of age .
C0006104
brain
C0423896
content