Symptoms and signs in the assessment of chronic airflow obstruction.
D000368:Aged; D004417:Dyspnea / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012135:Respiratory Sounds / Q000175:diagnosis