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