Traction is applied by the operator, {TAIL ~ usually patient} 12, {HEAD ~ cycling ratchet handle} 84 
Traction is applied by the operator , { TAIL ~ usually patient } 12 , { HEAD ~ cycling ratchet handle } 84
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH