the major lipids of normal duckling plasma were phosphatidylcholine ( 33 % ) , triacylglycerols ( 22 % ) , cholesterol esters ( 20 % ) , cholesterol ( 12 % ) , phosphatidylethanolamine ( 5 % ) , and sphingomyelin ( 2 % ) .
C0008387
cholesterol esters
C0008377
cholesterol