1. Prout, W. On the nature of the acid and saline matters usually existing in the stomach of animals.Philos. Tr. Roy. Soc. 144:45, 1824.
2. Rosemann, R. Beiträge zur Physiologic der Verdauung.Arch. ges. Physiol. 118:467, 1907.
3. Pavlov, I. P. The Work of the Digestive Glands. 2nd Ed., London, Charles Griffin & Co. Ltd., 1910.
4. Hollander, F. The chemistry and mechanics of hydrochloric acid formation in the stomach.Gastroenterology 1:401, 1943.
5. James, A. H. The Physiology of Gastric Digestion. London, Edward Arnold, Ltd., 1957.