{TAIL ~ A distal tip} of the lead body is continuously deflectable upon advancement and {HEAD ~ withdrawal} of a stylet through the lumen at the distal portion to access a selected branch of the coronary sinus 
{ TAIL ~ A distal tip } of the lead body is continuously deflectable upon advancement and { HEAD ~ withdrawal } of a stylet through the lumen at the distal portion to access a selected branch of the coronary sinus
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH