title: The efficiency of ventilation during voluntary hyperpnea: studies in normal subjects and in dyspneic patients with either chronic pulmonary emphysema or obesity.
mesh_terms: D019069:Cell Respiration; D004646:Emphysema; D008168:Lung; D009765:Obesity / Q000502:physiology*; D011656:Pulmonary Emphysema / Q000502:physiology*; D012119:Respiration
keywords: EMPHYSEMA, PULMONARY/physiology; OBESITY/physiology; RESPIRATION