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