{TAIL ~ The biological adhesive} may be, but is not limited to, {HEAD ~ a fibrin sealant} 
{ TAIL ~ The biological adhesive } may be , but is not limited to , { HEAD ~ a fibrin sealant }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD