1. Yudkin, J., Lancet, i, 1335 (1963).
2. Zlatkis, A., Zak, B., and Boyle, G. J., J. Lab. Clin. Med., 41, 486 (1953).
3. King, E. J., and Allott, E. N., Recent Advances in Clinical Pathology, second ed. (edit. by Dykes, S. C.), 271 (Churchill, London, 1962).
4. Stern, I. S., and Shapiro, B., J. Clin. Pathol., 6, 158 (1953).
5. Albrink, M. J., J. Lipid Res., 1, 53 (1959).