{TAIL ~ Suitable carriers} may include, for example, a physiological buffer solution, {HEAD ~ a flowable gel solution}, saline, and water 
{ TAIL ~ Suitable carriers } may include , for example , a physiological buffer solution , { HEAD ~ a flowable gel solution } , saline , and water
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH