Development of the measurement of respiratory resistance.
D000402:Airway Obstruction / Q000175:diagnosis; D000403:Airway Resistance; D001980:Bronchi; D004947:Esophagus; D006801:Humans; D008170:Lung Compliance; D008365:Manometry; D009130:Muscle, Smooth; D011650:Pulmonary Alveoli; D012123:Pulmonary Ventilation; D012119:Respiration; D014132:Trachea