1. Aldridge, W. N.: The differentiation of true and pseudo cholinesterase by organo-phosphorous compounds.Biochem. J.,53:62–67, 1953.
2. Amador, E., and Wacker, W. E. C.: Enzymatic methods used for diagnosis. In D. Glick (Ed.): Methods in Biochemical Analysis. New York,Interscience, 1965.
3. Ashcroft, G. W., and Sharman, D. F.: 5-Hydroxyindoles in human cerebrospinal fluids.Nature,186:1050–1051, 1960.
4. Axelrod, J., and Cohn, C. K.: Methyltransferase enzymes in red blood cells.J. Pharmacol. Exp. Ther.,176:650–654, 1971.
5. Batsakis, J. G., Briere, R. O., and Markel, S. F.: Diagnostic Enzymology. Chicago, American Society of Clinical Pathologists, 1970.