{TAIL ~ The system} 1, wherein said electrostimulation unit generates different signals of varying duty cycles, or no signal at all, for {HEAD ~ portions} of the treatment 
{ TAIL ~ The system } 1 , wherein said electrostimulation unit generates different signals of varying duty cycles , or no signal at all , for { HEAD ~ portions } of the treatment
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH