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