[Searching for a proper test of the early detection of small air-way disease (author's transl)].
D003011:Closing Volume; D006801:Humans; D008170:Lung Compliance; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008449:Maximal Expiratory Flow-Volume Curves; D008450:Maximal Midexpiratory Flow Rate