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