References
- Rothman K J. Causes. Am J Epidemiol 1976; 104: 587–92
- Hill A B. The environment and disease: association or causation?. Proc R Soc Med 1965; 58: 295–300
- Wulff H R., Andur Pedersen S, Rosenberg R. Philosophy in medicine. Blackwell Scientific Publications, Oxford 1986
- Rothman K J. Modern epidemiology. Little, Brown, Boston 1986
- Mackie J L. Causes and conditions. Am Philosoph Q 1965; 2: 245–64
- Lane M R., Lee S P. Recurrence of duodenal ulcer after medical treatment. Lancet 1988; 1: 1147–9
- Goodwin C S. Duodenal ulcer, Campylobacter pylori, and the 'leaking roof concept. Lancet 1988; 2: 1467–9
- Graham D Y. Campylobacter pylori and peptic ulcer disease. Gastroenterology 1989; 96: 615–25
- Payer L. Medicine and culture. Varieties of treatment in the United States, England, West Germany, and France. Henry Holt, New York 1988
- Williamson J W., German P S., Weiss R, et al. Health science information management and continuing education of physicians. Ann Intern Med 1989; 110: 151–60
- Jörgensen L S. Life stress and gastrointestinal upset. Dig Dis 1988; 6: 91–101
- Holtmann G, Armstrong D, Pöppel E, Bauerfeind A, Arnold H., Goebell R, et al. Influence of stress on the healing and relapse of duodenal ulcers. A prospective multicenter trial of 2109 patients with recurrent duodenal ulceration treated with ranitidine. Scand J Gastroenterol 1992; 27: 917–23
- Friedman G D., Siegelaub A B., Seltzer C C. Cigarettes, alcohol. coffee and peptic ulcer. N Engl Med 1974; 290: 469–73
- Soil A H. Pathogenesis of peptic ulcer and implications for therapv. New Engl J Med 1990; 322: 909–16
- Piper D, Nasiry W., Mc R., Intosh Shy J. C., Pierce M., Byth J. K. Smoking, alcohol, analgesics, and chronic duodenal ulcer. A controlled study of habits before first symptoms and before diagnosis. Scand J Gastroenterol 1984; 18: 1015–21
- Nasiry R, McIntosh W. J., Byth H. K., Piper D W. Prognosis of chronic duodenal ulcer: a prospective study of the effects of demographic and environmental factors and ulcer healing. Gut 1987; 28: 533–40
- Doll R, Jones F A., Pygott F. Effect of smoking on the production and maintenance of gastric and duodenal ulcers. Lancet 1958; 1: 657–62
- Eastwood G L. The role of smoking in peptic ulcer disease. J Clin Gastroenterol 1988; 10: S19–23
- Hunt L M., Jordan B, Irwin S. Views of what's wrong: diagnosis and patients' concepts of illness. Soc Sci Med 1989; 28: 945–56
- Schulte M B., Pluym A., Kester B, Sutherland C. Health promotion and self-care in the case of cardiovascular disease. J Clin Epidemiol 1990; 43: 817–25