Hydroxocobalamin versus cyanocobalamin in the treatment of tobacco amblyopia.
D000368:Aged; D000550:Amblyopia / Q000188:drug therapy*; D003118:Color Perception / Q000187:drug effects; D003119:Color Perception Tests; D006801:Humans; D006879:Hydroxocobalamin / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010947:Plants, Toxic; D014026:Nicotiana; D014785:Vision, Ocular / Q000187:drug effects; D014805:Vitamin B 12 / Q000627:therapeutic use*
D014805:Vitamin B 12; D006879:Hydroxocobalamin