As a result, {HEAD ~ the patient} is not exposed to {TAIL ~ excess solution} when performing the test 
is not exposed to
As a result , { HEAD ~ the patient } is not exposed to { TAIL ~ excess solution } when performing the test
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH