Comparison of flow-volume and closing volume variables in a random population.
D000402:Airway Obstruction / Q000175:diagnosis*; D001249:Asthma / Q000175:diagnosis*; D001993:Bronchodilator Agents; D002648:Child; D003011:Closing Volume; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008176:Lung Volume Measurements; D008449:Maximal Expiratory Flow-Volume Curves
D001993:Bronchodilator Agents