1. Folch, J., M. Lees and G.H. Sloane-Stanley, J. Biol. Chem. 226:497 (1957).
2. Bligh, E.G., and W.J. Dyer, Can. J. Biochem. Physiol. 37:911 (1959).
3. Maxwell, R.J., W.N. Marmer, M.P. Zubillaga and G.A. Dalickas, J. Assoc. Off. Anal. Chem. 63:600 (1980).
4. Hagan, S.N., E.W. Murphy and L.M. Shelly, J. Assoc. Off. Anal. Chem. 50:250 (1967).
5. Nelson, G.J., in “Analysis of Lipids and Lipoproteins,” edited by E.G. Perkins, American Oil Chemists' Society, Champaign, IL, 1975, pp. 1–22.