The validity of the questionnaire diagnosis. "Angina pectoris".
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis*; D004200:Diseases in Twins / Q000175:diagnosis*; D004562:Electrocardiography; D005189:False Positive Reactions; D006801:Humans; D008297:Male; D008875:Middle Aged; D011177:Postal Service; D011795:Surveys and Questionnaires