There are a number of methods for producing images of {HEAD ~ internal structures} of {TAIL ~ a body} 
of
There are a number of methods for producing images of { HEAD ~ internal structures } of { TAIL ~ a body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL