The method 1 wherein said {TAIL ~ at least one sterol} is cholesterol, and the proportion of said sterol containing {HEAD ~ material} based on the amount of said packing material is approximately 40 weight percent 
The method 1 wherein said { TAIL ~ at least one sterol } is cholesterol , and the proportion of said sterol containing { HEAD ~ material } based on the amount of said packing material is approximately 40 weight percent
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH