System for marking the locations of imaged tissue with {HEAD ~ respect} to {TAIL ~ the surface} of the tissue 
to
System for marking the locations of imaged tissue with { HEAD ~ respect } to { TAIL ~ the surface } of the tissue
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH