References
- Kreiss C, Blum AL. Epidemiology and risk factors of gastroduodenal ulcer. Chirurg 1996;67:7–13.
- Lam SK. Epidemiology and genetics of peptic ulcer. Gastroenterol Jpn 1993;28 Suppl 5:145–57.
- Hein HO, Suadicani P, Gyntelberg F. Genetic markers for peptic ulcer. A study of 3387 men aged 54 to 74 years: The Copenhagen Male Study. Scand J Gastroenterol 1997;32: 16–21.
- Gyntelberg F, Lauridsen L, Schubell K. Physical fitness and risk of myocardial infarction in Copenhagen males aged 40–59. Scand J Work Environ Health 1980;3: 170–8.
- Glarborg-Jørgensen T, Gyntelberg F. Occurrence of peptic ulcer disease in Copenhagen males age 40–59. Dan Med Bull 1976;23: 23–8.
- Suadicani P, Hein HO, Gyntelberg F. Serum validated tobacco use and social inequalities in risk of ischaemic heart disease. Int J Epidem 1994;23:293–300.
- Hagerup L, Eriksen M, Schroll M, Hollnagel H, Agner E, Larsen S. The Glostrup Population Studies. Collection of epidemiological tables. Reference values for use in cardiovascular population studies. Scand J Soc Med 1981;20 Suppl:1–112.
- Hein HO, Suadicani P, Sørensen H, Gyntelberg F. Changes in physical activity level and risk of ischaemic heart disease. Scand J Med Sci Sports 1994;4:57–64.
- Suadicani P, Hein HO, Gyntelberg F. Adverse effects on risk of ischaemic heart disease of adding sugar to hot beverages in hypertensives using diuretics. A six year follow-up in the Copenhagen Male Study. Blood Press 1996;5:91–7.
- Svalastoga K Prestige, class and mobility. Copenhagen: Munksgaard; 1959.
- Hansen EJ Socialgrupper i Danmark. Copenhagen: The Institute of Danish Social Science; 1984. p. Study No. 48.
- Norusis MJ, SPSS Inc SPSS for Windows: base system users guide. Release 6.0. Chicago: SPSS; 1994.
- Norusis MJ, SPSS Inc SPSS for Windows: advanced statistics. 6.1. Chicago: SPSS; 1994.
- Hosmer DW, Lemeshow S Applied logistic regression. New York: Wiley-Interscience; 1989.
- Kleinbaum DG, Kupper LL, Morgenstern H. Epidemiological research. Principles and quantitative methods. Chapter 19. London: Lifetime Learning Publications; 1982.
- Mendz GLK, Hazell SL, Burns BP. Glucose utilization and lactate production by Helicobacter pylori. J Gen Microbiol 1993;139(Pt 12):3023–8.
- Reynolds DJ, Penn CW. Characteristics of Helicobacter pylori growth in a defined medium and determination of its amino acid requirements. Microbiology 1994;140:2649–56.
- Maity S, Vedasiromoni JR, Ganguly DK. Anti-ulcer effect of the hot water extract of black tea (Camellia sinensis). J Ethnophar- macol 1995;46:167–74.
- Dunn BE, Cohen H, Blaser MJ. Helicobacter pylori. Clin Microbiol Rev 1997;10:720–41.
- Lassen AT, Hansen JM. Helicobacter pylori in 1997. Ugeskr Laeger 1997;159:3760–66.
- Clearfield HR. Helicobacter pylori: aggressor or innocent bystander? Med Clin North Am 1991;75:815–29.