The amino acids and other ampholytes of urine.
D000596:Amino Acids / Q000652:urine*; D002021:Buffers; D012117:Resins, Synthetic; D014556:Urine
D000596:Amino Acids; D002021:Buffers; D012117:Resins, Synthetic
AMINO ACIDS/in urine; RESINS; URINE