title: Collateral ventilation, the bane of bronchoscopic volume reduction.
authors.forename: Henry E
authors.initials: HE
authors.lastname: Fessler
mesh_terms: D000403:Airway Resistance; D001999:Bronchoscopy / Q000379:methods*; D004646:Emphysema / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D017079:Exercise Tolerance; D006801:Humans; D011013:Pneumonectomy / Q000379:methods*; D001261:Pulmonary Atelectasis / Q000209:etiology / Q000601:surgery; D016896:Treatment Outcome