On the atomic or "local" contributions to chemical shifts due to the anisotropy of the diamagnetic susceptibility of the aromatic side chain of amino acids and of the porphyrin ring.
D000596:Amino Acids; D055598:Chemical Phenomena; D002621:Chemistry; D008280:Magnetics; D011166:Porphyrins
D000596:Amino Acids; D011166:Porphyrins