1. Beutler, E., in The Metabolic Basis of Inherited Disease (edit. by Stanbury, J. B., Wyngaarden, J. B., and Frederickson, D. S.), 1031 (McGraw-Hill, New York, 1960).
2. Cohen, G., and Hochstein, P., Science, 134, 1756 (1961).
3. Cohen, G., and Hochstein, P., Biochemistry, 2, 1420 (1963).
4. Beutler, E., J. Lab. Clin. Med., 49, 84 (1957).
5. Schwarz, K., J. Biol. Chem., 244, 2103 (1969).