1. N. P. Akimov, Byull. Éksperim. Biol. i Med., No. 4, 41 (1967).
2. Z. A. Bondar' et al., Advances in Hepatology [in Russian], No. 2, Riga (1968), p. 503.
3. Z. A. Bondar' (editor), Trudy I Moskovsk. Med. Inst.,69, 6 (1970).
4. A. G. Gukasyan, Ter. Arkh., No. 6, 108 (1967).
5. G. I. Dorofeev, Functional and Morphological Changes in the Stomach in Diseases of Other Digestive Organs, Author's Abstract of Doctoral Dissertation [in Russian], Leningrad (1964).