Thus, {TAIL ~ cells} embedded in this enhanced hydrogel matrix substantially escape {HEAD ~ host immune destruction} 
Thus , { TAIL ~ cells } embedded in this enhanced hydrogel matrix substantially escape { HEAD ~ host immune destruction }
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD