ULSAM is a unique, ongoing, longitudinal, epidemiologic study based on all available men, born between 1920 and 1924, in Uppsala County, Sweden. The men were investigated at the ages of 50, 60, 70, 77, 82 and 88 years. Full screening and official registry data are available in our databases and more data is continously added.
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The reinvestigations were based on the previous investigation(s) as illustrated by the figure below.