title: Frequency analysis of breath sounds by phonopneumography.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001314:Auscultation / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D008168:Lung; D008171:Lung Diseases / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests / Q000379:methods*; D013909:Thorax