1. Himwich, H. E., Brain Metabolism and Cerebral Disorders (Williams and Wilkins, Baltimore, 1951).
2. McIlwain, H., Biochemistry and the Central Nervous System, second ed. (Churchill, London, 1959).
3. Kety, S. S., Metabolism of the Nervous System, edit. by Richter, D., 223 (Pergamon Press, 1957).
4. Whittam, R., Nature, 191, 603 (1961).
5. Roberts, R. B., Flexner, J. B., and Flexner, L. B., J. Neurochem., 4, 78 (1959).