title: The effect of added external resistance on regional pulmonary filling and emptying sequences.
mesh_terms: D000328:Adult; D000403:Airway Resistance; D006801:Humans; D008168:Lung / Q000502:physiology*; D008297:Male; D008722:Methods; D012123:Pulmonary Ventilation; D011868:Radioisotopes; D013147:Spirometry; D014939:Work of Breathing
chemical_list: D011868:Radioisotopes