A study of the repeatability of ventilatory tests, anthropometric measurements, and answers to a respiratory symptoms questionnaire in working coal-miners.
D003031:Coal; D003032:Coal Mining; D006801:Humans; D011009:Pneumoconiosis / Q000175:diagnosis*; D011795:Surveys and Questionnaires; D014937:Work
D003031:Coal
COAL MINING; PNEUMOCONIOSIS/diagnosis