The ratio of movement of the stylus to the cutter is established by {HEAD ~ the linkages} in accordance with the ratio of radiation absorption of the compensating material to {TAIL ~ the radiation absorption} of human tissue 
The ratio of movement of the stylus to the cutter is established by { HEAD ~ the linkages } in accordance with the ratio of radiation absorption of the compensating material to { TAIL ~ the radiation absorption } of human tissue
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH