Nasal brushing for the study of ciliary ultrastructure.
D002923:Cilia / Q000648:ultrastructure*; D004848:Epithelium / Q000648:ultrastructure; D006801:Humans; D008171:Lung Diseases / Q000473:pathology*; D008854:Microscopy, Electron / Q000379:methods; D009297:Nasal Mucosa / Q000473:pathology*; D009668:Nose Diseases / Q000473:pathology*; D013048:Specimen Handling / Q000379:methods*