1. Almy TP (1978) The gastrointestinal tract in man under stress. In: Sleisenger MH, Fordtran JS (eds) Gastrointestinal disease, 2nd edn. WB Saunders Co, Philadelphia London Toronto, p 9
2. Andrews GR, Haneman B, Arnold BJ, Copper Booth J, Taylor K (1967) Atrophic gastritis in the aged. Aust Ann Med 16:230–235
3. Belber JB (1978) Gastroscopy and duodenoscopy. In: Sleisenger MH, Fordtran JS (eds) Gastrointestinal disease, 2nd edn. WB Saunders Co, Philadelphia London Toronto, p 697
4. Bockus HL (1976) Regional enteritis (Crohn’s disease): considerations of etiology and pathogenesis. Am J Gastroenterol 69:253–271
5. Brandborg LL (1978 a) Polyps, tumors, cancer of the stomach. In: Sleisenger MH, Fordtran JS (eds) Gastrointestinal disease, 2nd edn. WB Saunders Co, Philadelphia London Toronto, p 752