Variation in excretion of certain amino acids with age.
D000409:Alanine; D000596:Amino Acids; D003401:Creatine; D003404:Creatinine; D003553:Cystine; D005973:Glutamine
D000596:Amino Acids; D005973:Glutamine; D003553:Cystine; D003404:Creatinine; D003401:Creatine; D000409:Alanine
ALANINE; CREATINE AND CREATININE; CYSTINE; GLUTAMINE