title: The ultrastructure of preneoplastic changes in the bronchial mucosa.
mesh_terms: D001980:Bronchi / Q000473:pathology / Q000648:ultrastructure; D001984:Bronchial Neoplasms / Q000648:ultrastructure*; D002278:Carcinoma in Situ / Q000648:ultrastructure; D002923:Cilia / Q000648:ultrastructure; D006801:Humans; D006965:Hyperplasia; D008679:Metaplasia; D008854:Microscopy, Electron; D010212:Papilloma / Q000648:ultrastructure; D011230:Precancerous Conditions / Q000648:ultrastructure*