1. Voile R. L., Kvelle G. B. The Pharmacological Basis of therapeutics, L. S. Goodman, A. Gilman. MacMillan, New York 1970; 578–593
2. Thienes C. H., Haley T. J. Clinical Toxicology. Lea and Febiger, Philadelphia 1972; 19–22
3. Acute nicotine poisoning