Questionnaire reliability and validity in asbestos exposed workers.
D001195:Asbestosis / Q000175:diagnosis* / Q000453:epidemiology; D004781:Environmental Exposure; D006801:Humans; D009784:Occupational Diseases / Q000175:diagnosis*; D012129:Respiratory Function Tests; D012907:Smoking; D011795:Surveys and Questionnaires; D013997:Time Factors