title: Mucociliary clearance: pathologic and clinical features.
mesh_terms: D001991:Bronchitis / Q000188:drug therapy / Q000503:physiopathology*; D002923:Cilia / Q000502:physiology*; D005100:Expectorants / Q000627:therapeutic use; D006801:Humans; D006813:Humidity; D009093:Mucus / Q000032:analysis / Q000378:metabolism
chemical_list: D005100:Expectorants