iron
Free iron has been implicated in lipid peroxidation and ischemic myocardial       damage, and it has been suggested that iron is an independent risk factor for       myocardial infarction.
Free iron has been implicated in lipid peroxidation and ischemic myocardial       damage, and it has been suggested that  @SUBJECT$  is an independent  @PREDICAT$  for        @OBJECT$ .