Death rates among the Italian railroad employees, with special reference to coronary heart disease and physical activity at work.
D000328:Adult; D003327:Coronary Disease / Q000401:mortality*; D003645:Death, Sudden; D005500:Follow-Up Studies; D006801:Humans; D007558:Italy; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality; D009787:Occupational Medicine; D005082:Physical Exertion; D011890:Railroads; D012306:Risk; D014481:United States; D014937:Work