The limits of epidemiology.
D005260:Female; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology*; D016273:Occupational Exposure / Q000009:adverse effects*; D009790:Occupations; D011832:Radiation Injuries / Q000453:epidemiology*; D012042:Registries / Q000706:statistics & numerical data*