Those devices which include a filter mechanism will remove embolic material from blood, and thereby prevent occurrence of {TAIL ~ ischemic stroke}, {HEAD ~ myocardial infarction} or systemic embolus 
Those devices which include a filter mechanism will remove embolic material from blood , and thereby prevent occurrence of { TAIL ~ ischemic stroke } , { HEAD ~ myocardial infarction } or systemic embolus
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH