NORMAL PORPHYRIN METABOLISM.
D000596:Amino Acids; D006418:Heme; D008660:Metabolism; D011166:Porphyrins; D011758:Pyrroles
D000596:Amino Acids; D011166:Porphyrins; D011758:Pyrroles; D006418:Heme
AMINO ACIDS; HEME; METABOLISM; PORPHYRINS; PYRROLES; REVIEW