title: Longitudinal mixing in pulmonary airways. Analysis of inert gas dispersion in symmetric tube network models.
mesh_terms: D000403:Airway Resistance; D006371:Helium; D006801:Humans; D008433:Mathematics; D008953:Models, Anatomic; D008954:Models, Biological; D012123:Pulmonary Ventilation
chemical_list: D006371:Helium