A variety of {TAIL ~ materials} can be used for such enteric layers or coatings, such materials including a number of polymeric acids and mixtures of polymeric acids with such materials as shellac, cetyl alcohol, and {HEAD ~ cellulose acetate} 
A variety of { TAIL ~ materials } can be used for such enteric layers or coatings , such materials including a number of polymeric acids and mixtures of polymeric acids with such materials as shellac , cetyl alcohol , and { HEAD ~ cellulose acetate }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD