1. Usdin, E., and Sandler, M. (eds.), 1976, Trace Amines and the Brain, Marcel Dekker, New York.
2. Boulton, A. A., 1974, Lancet 2: 7871.
3. Durden, D. A., and Philips, S. R., 1980, J. Neurochem. 34: 1725–1732.
4. Boulton, A. A., 1976, Trace Amines and the Brain, (E. Usdin and M. Sandler. eds.), Marcel Dekker, New York, pp. 21–39.
5. Boulton, A. A., 1979, Behay. Brain Sci. 2: 418.