1. Bartlett, J. E. A.: Place of methyl phenidate hydrochloride in psychiatric practice. Brit. med. J. 1959I, 48.
2. Brodie, B. B., A. Pletscher and P. A. Shore: Evidence that serotonin has a role in brain function. Science 122, 968 (1955).
3. Burn, J. H.: Tyramine and other amines as noradrenaline releasing substances. Adrenergic Mechanisms, ed. J. R. Vane, G. E. W. Wolstenholme, M. O'Connor, p. 326. London: Churchill 1960.
4. Burton, R. M., M. A. Sodd and A. Goldin: The analeptic action of lysergic acid diethylamine and d-amphetamine on reserpine-sedated mice. Arch. int. Pharmacodyn. 112, 188 (1957).
5. Carlsson, A.: Brain mono-amines and psychotropic drugs. Neuropsychopharmacology, ed. E. Rothlin, p. 417. Amsterdam: Elsevier 1961.