title: Ultrastructural observations on bronchial epithelial hyperplasia and squamous metaplasia.
mesh_terms: D000818:Animals; D001980:Bronchi / Q000187:drug effects / Q000473:pathology*; D001984:Bronchial Neoplasms / Q000473:pathology; D002273:Carcinogens / Q000008:administration & dosage / Q000494:pharmacology*; D004848:Epithelium / Q000473:pathology; D005260:Female; D008679:Metaplasia; D008854:Microscopy, Electron; D051381:Rats; D013997:Time Factors
chemical_list: D002273:Carcinogens