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