title: Vitamin B 12  absorption in cystic fibrosis.
mesh_terms: D002648:Child; D003550:Cystic Fibrosis / Q000150:complications / Q000378:metabolism*; D006801:Humans; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000209:etiology
chemical_list: D014805:Vitamin B 12