title: [Ultrastructural characteristics of the cilia in patients with respiratory tract infections].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001980:Bronchi / Q000648:ultrastructure*; D002923:Cilia / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000473:pathology*; D012907:Smoking