title: Collateral ventilation in man.
mesh_terms: D000328:Adult; D000367:Age Factors; D000399:Air Pressure; D000818:Animals; D004285:Dogs; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000503:physiopathology*; D012119:Respiration