1. Dahlström, A., Fuxe, K.: Evidence for the existence of monoamine neurons in the central nervous system. I. Demonstration of monoamines in the cell bodies of brain stem neurons. Acta physiol. scand. 62, Suppl. 232, 1–55 (1964).
2. —: Evidence for the existence of monoamine neurons in the central nervous system. II. Experimentally induced changes in the intraneuronal amine levels of bulbo-spinal neuron systems. Acta physiol. scand. 64, Suppl., 247, 1–35 (1965).
3. Dale, H. H.: Nomenclature of fibres in the autonomic nervous system and their effects. J. Physiol. (Lond.) 80, 10–11P (1933).
4. —: Pharmacology and nerve endings. Proc. roy. Soc. Med. 28, 319–332 (1935).
5. —: Natural chemical stimulators. Edinb. med. J. 45, 461–480 (1938).