contacting a tip of a biopsy instrument to the membrane so that {HEAD ~ the tip} is displayed in {TAIL ~ the ultrasound image} 
is displayed in
contacting a tip of a biopsy instrument to the membrane so that { HEAD ~ the tip } is displayed in { TAIL ~ the ultrasound image }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL