References
- Greenberger NJ. Changes in gastroenterology 1960–1985: lessons from the past and implications for the future. Gastroenterology 1985:89(5): 933–8
- Portis SA, ed. Diseases of the digestive system. Philadelphia: Lea & Febiger, 1941
- Sleisenger MH, Fordtran JS, eds. Gastrointestinal disease: pathophysiology, diagnosis, management. 3d ed. Philadelphia: WB Saunders, 1983
- Schiff L, Schiff ER, eds. Diseases of the liver. 5th ed. Philadelphia: JB Lippincott 1982
- Blackstone MO. Endoscopic interpretation: normal and pathologic appearances of the gastrointestinal tract. New York: Raven Press, 1984
- US Department of Health, Education, and Welfare. Report to the Congress of the United States of the National Commission on Digestive Diseases. Washington, DC: Dept of Health, Education, and Welfare, 1979