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