In yet other embodiments of the invention, the active agent is selected from {HEAD ~ the group} consisting of: active agents comprising at least one paramagnetic element, active agents comprising at least one radioactive element, and {TAIL ~ fibrinolytic agents} 
In yet other embodiments of the invention , the active agent is selected from { HEAD ~ the group } consisting of : active agents comprising at least one paramagnetic element , active agents comprising at least one radioactive element , and { TAIL ~ fibrinolytic agents }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH 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