In use, {HEAD ~ a patients thighs} are positioned atop {TAIL ~ the platform} 186 and are spaced apart by the separator 188 
are positioned atop
In use , { HEAD ~ a patients thighs } are positioned atop { TAIL ~ the platform } 186 and are spaced apart by the separator 188
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH