The lead 4 wherein {HEAD ~ the attachment} includes {TAIL ~ a retaining ring} at least partially fit about the lead body 
The lead 4 wherein { HEAD ~ the attachment } includes { TAIL ~ a retaining ring } at least partially fit about the lead body
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH