Changing incidence of peptic ulcer--facts or artefacts? A cohort study from Tromsø

STUDY OBJECTIVE--The aim was to estimate the age and sex specific incidences of duodenal and gastric ulcers censored for death and migration. DESIGN--A population based cohort was followed seven years through records of x ray examinations, endoscopies, and operations in the only hospital serving the...

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Veröffentlicht in:Journal of epidemiology and community health (1979) 1992-08, Vol.46 (4), p.433-436
Hauptverfasser: Johnsen, R, Straume, B, Førde, O H, Burhol, P G
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Sprache:eng
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