[Risk factors of ischemic heart disease among railroad workers in Czechoslovakia].
D000328:Adult; D003327:Coronary Disease / Q000175:diagnosis* / Q000209:etiology; D003604:Czechoslovakia; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D011890:Railroads; D012306:Risk
Rizikové faktory ischemické choroby srdce u pracovníků CSD.