a significant positive correlation between the number of erythrocytes and amino acid concentration was found for alanine , asparagine , aspartate , citrulline , glutamate , glycine , phenylalanine and taurine but not for glutamine , histidine , isoleucine , leucine , lysine , methionine , ornithine , serine , threonine , tyrosine and valine .
C0002520
amino acid
C0017890
glycine