{HEAD ~ The mechanical oscillation} of the fluid is translated to the visco elastic polyurethane covering upon which {TAIL ~ the patient} is disposed 
{ HEAD ~ The mechanical oscillation } of the fluid is translated to the visco elastic polyurethane covering upon which { TAIL ~ the patient } is disposed
HEAD 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 OTH OTH