Participation in a Prospective Cohort Study on Melanoma did not Affect the Incidence and Mortality of the Studied Disease
Prospective observational studies have shown previously that study participants have lower morbidity and mortality than non-participants. The aim of the current study was to determine whether participants in a prospective cohort study on melanoma have a different incidence and mortality of melanoma compared with non-participants and the background population. Information was collected from Swedish
