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