title: Significance of loop formation in pressure-flow diagrams of chronic obstructive lung diseases.
mesh_terms: D000293:Adolescent; D000368:Aged; D000403:Airway Resistance; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010993:Plethysmography, Whole Body; D011312:Pressure; D011650:Pulmonary Alveoli / Q000503:physiopathology; D012123:Pulmonary Ventilation