The invention relates to an implantable catheter lead or electrode lead including an elongated flexible lead body, and including fixation means connected to the lead body to effect {TAIL ~ fixation} of the lead at a predetermined position within a vessel or {HEAD ~ a body cavity} of a patient 
The invention relates to an implantable catheter lead or electrode lead including an elongated flexible lead body , and including fixation means connected to the lead body to effect { TAIL ~ fixation } of the lead at a predetermined position within a vessel or { HEAD ~ a body cavity } of a patient
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