A retrospective cohort study comparing complaints and diseases in day and shift workers.
D000204:Activity Cycles; D000328:Adult; D000368:Aged; D002940:Circadian Rhythm; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology*; D012189:Retrospective Studies; D014937:Work