title: Effects of tobacco on the ear.
mesh_terms: D000818:Animals; D002404:Catheterization; D002415:Cats; D002781:Cholesteatoma / Q000209:etiology; D004427:Ear Diseases / Q000139:chemically induced / Q000209:etiology; D004432:Ear, Middle / Q000187:drug effects* / Q000473:pathology; D004848:Epithelium / Q000187:drug effects / Q000473:pathology; D006097:Granulation Tissue / Q000473:pathology; D007249:Inflammation / Q000473:pathology; D008679:Metaplasia / Q000139:chemically induced / Q000473:pathology; D008722:Methods; D010947:Plants, Toxic; D013638:Tars / Q000008:administration & dosage / Q000009:adverse effects*; D014026:Nicotiana
chemical_list: D013638:Tars