1. Armitage, A. K.: Effects of nicotine and tobacco smoke on blood pressure and release of catecholamines from the adrenal glands. Brit. J. Pharmacol. 25, 515?526 (1965).
2. Armitage, A. K., Milton, A. S.: The release of adrenaline by nicotine from the adrenal medulla. In: Tobacco Alkaloids and Related Compounds. U. S. v. Euler, ed., pp. 205?212. Oxford: Pergamon Press 1965.
3. Ashton, A., Watson, D. W., Marsh, R., Sadlers, J.: Puffing frequency and nicotine intake in cigarette smokers. Brit. med. J. 1970 III, 679?681.
4. Burch, G. E., DePasquale, N. P.: A study of variables which offer difficulty in the evaluation of the peripheral vascular response to cigarette smoking. J. Lab. clin. Med. 58, 694?703 (1961).
5. Burn, J. H.: Action of nicotine on the heart. Ann. N.Y. Acad. Sci. 90, 70?73 (1960).