title: VITAMIN B12 AND THE PORPHYRINS.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D045728:Corrinoids; D006418:Heme; D009211:Myoglobin; D011166:Porphyrins; D011506:Proteins / Q000378:metabolism*; D012106:Research; D014805:Vitamin B 12
chemical_list: D045728:Corrinoids; D009211:Myoglobin; D011166:Porphyrins; D011506:Proteins; D006418:Heme; D014805:Vitamin B 12
keywords: CHEMISTRY, PHYSICAL; EXPERIMENTAL LAB STUDY; HEME; MYOGLOBIN; PORPHYRINS; PROTEIN METABOLISM; REVIEW; VITAMIN B 12