Letter: Horizontal gradient in ventilation distribution due to a localized chest wall abnormality.
D006801:Humans; D007366:Intercostal Muscles / Q000503:physiopathology; D008168:Lung / Q000503:physiopathology*; D008171:Lung Diseases / Q000503:physiopathology*; D012119:Respiration; D013909:Thorax / Q000503:physiopathology*