title: The health data base of a nationwide company - its use in epidemiological studies.
mesh_terms: D000328:Adult; D004812:Epidemiologic Methods; D005260:Female; D005602:France; D006801:Humans; D007256:Information Systems / Q000458:organization & administration*; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D009787:Occupational Medicine