One screen may cooperate with another screen to provide {HEAD ~ shearing} of {TAIL ~ the tissue} specimens 
of
One screen may cooperate with another screen to provide { HEAD ~ shearing } of { TAIL ~ the tissue } specimens
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH