fasting values of branched-chain amino acids ( valine , leucine , and isoleucine ) were measured by column chromatography in the sera of 27 normal infants and children , 15 days to 9 years of age , 14 children with documented ketotic hypoglycemia one to 7 years of age , and in 14 sera from six infants , 15 days to 2 years of age , with documented hyperinsulinism .
C0008059
children
C0021270
infants