title: Chronic low-level nitrogen dioxide exposure and mucociliary clearance.
mesh_terms: D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D002923:Cilia / Q000502:physiology; D005260:Female; D008722:Methods; D009092:Mucous Membrane / Q000502:physiology; D009585:Nitrogen Dioxide / Q000009:adverse effects*; D051381:Rats; D013667:Technetium; D013997:Time Factors; D014132:Trachea / Q000502:physiology*
chemical_list: D013667:Technetium; D009585:Nitrogen Dioxide