1. Barajas, L.: The innervation of the juxtaglomerular apparatus. Lab. Invest. 13, 916?929 (1964).
2. Bennett, T., Burnstock, G., Cobb, J. L. S., Malmfors, T.: An ultrastructural and histochemical study of the short-term effects of 6-hydroxydopamine on adrenergic nerves in the domestic fowl. Brit. J. Pharmacol. 38, 802?809 (1970).
3. Berkowitz, B. A., Tarver, J. H., Spector, S.: Norepinephrine in blood vessels: concentration, binding, uptake and depletion. J. Pharmacol. exp. Ther. 177, 119?126 (1971).
4. Devine, C. E.: Neuromuscular relationships in rat intestinal and mesenteric blood vessels. Proc. Univ. Otago med. Sch. 44, 9?11 (1966).
5. Dole?el, S.: Monoaminergic innveration of the arteries and veins of the kidney observed using fluorescence reaction. Folia morph. (Warszawa) 14, 168?174 (1966).