title: Negative pressure ventilation in COPD.
authors.forename: R S
authors.initials: RS
authors.lastname: Goldstein
mesh_terms: D016022:Case-Control Studies; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology / Q000628:therapy*; D012119:Respiration / Q000502:physiology; D012121:Respiration, Artificial / Q000379:methods*; D013997:Time Factors; D015919:Ventilators, Negative-Pressure