title: Combinations of four physical signs as indicators of ventilatory abnormality in obstructive pulmonary syndromes.
mesh_terms: D000328:Adult; D000368:Aged; D003371:Cough / Q000175:diagnosis; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D012135:Respiratory Sounds / Q000175:diagnosis