Industrial respiratory diseases as presenting to the general practitioner.
D001249:Asthma / Q000175:diagnosis; D001991:Bronchitis / Q000175:diagnosis; D002908:Chronic Disease; D006801:Humans; D009784:Occupational Diseases / Q000175:diagnosis* / Q000209:etiology; D012140:Respiratory Tract Diseases / Q000175:diagnosis* / Q000209:etiology