1. P. G. Bogach, Mechanisms of Nervous Regulation of the Motor Function of the Small Intestime [in Russian], Kiev (1961).
2. V. N. Boldyrev, ?Periodic work of the digestive apparatus on an empty stomach,? Dissertation, St. Petersburg (1904).
3. A. N. Buryi, V. E. Medvedev, and S. D. Groisman, Fiziol. Zh. SSSR, No. 6, 1103 (1981).
4. T. S. Klyubina, in: The Physiology and Pathology of Digestion [in Russian], Kishinev (1972), p. 311.
5. O. P. Kufareva, Klin. Med., No. 7, 45 (1948).