President's address: Occupational medicine and epidemiology.
D003695:Delivery of Health Care; D004812:Epidemiologic Methods; D004813:Epidemiology; D006285:Health Planning; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology / Q000209:etiology; D009786:Occupational Health Services / Q000600:supply & distribution; D009787:Occupational Medicine / Q000592:standards; D013222:State Medicine; D014852:Wales