title: Tobacco amblyopia and its relationship to B12 deficiency.
mesh_terms: D000550:Amblyopia / Q000150:complications* / Q000188:drug therapy; D000752:Anemia, Pernicious / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D010947:Plants, Toxic; D014026:Nicotiana; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000150:complications*
chemical_list: D014805:Vitamin B 12