Angina pectoris and risk factors in the urban male population in the 6th decade.
D000367:Age Factors; D000787:Angina Pectoris / Q000453:epidemiology*; D003327:Coronary Disease / Q000150:complications; D003604:Czechoslovakia; D006801:Humans; D008297:Male; D008875:Middle Aged; D012494:Sampling Studies; D012737:Sex Factors; D014505:Urban Population