1. L. I. Geller, Gastric Secretion and Mechanism of Its Regulation in the Healthy Individual [in Russian], Leningrad (1975).
2. N. D. Eshchenko and V. A. Vilkova, Probl. Endokrinol., No. 1, 68 (1980).
3. A. A. Pokrovskii and L. M. Bogdanova, Lab. Delo, No. 7, 411 (1964).
4. O. S. Radbil' and S. G. Vainshtein, The Endocrine System in the Stomach [in Russian], Kazan' (1973).
5. Ya. Kh. Turakulov, in: The Mechanism of Action of Hormones [in Russian], Tashkent (1976), pp. 5?14.