title: Recently described defects in vitamin B12 metabolism.
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D008661:Metabolism, Inborn Errors / Q000235:genetics*; D011247:Pregnancy; D014155:Transcobalamins / Q000235:genetics / Q000378:metabolism; D014805:Vitamin B 12 / Q000031:analogs & derivatives / Q000235:genetics / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000235:genetics
chemical_list: D014155:Transcobalamins; C019476:mecobalamin; D014805:Vitamin B 12