 Zinc , Cu , Ca , and Fe ions , and selenium with vitamin C are used to treat Cd intoxication , though it is not easily reversed . 
 Zinc , Cu , Ca , and Fe ions , and selenium with vitamin C are used to treat Cd intoxication , though it is not easily reversed . 
Zinc , Cu , Ca , and Fe ions , and selenium wit vitamin C r used to treat Cd intoxication , doe it ain't easily reversed .