title: Pulmonary penetration and deposition of aerosols in different gases: fluid flow effects.
mesh_terms: D000336:Aerosols; D000388:Air; D006371:Helium; D006801:Humans; D008168:Lung / Q000502:physiology*; D008297:Male; D010100:Oxygen; D012119:Respiration
chemical_list: D000336:Aerosols; D006371:Helium; D010100:Oxygen