title: [Electron microscopic studies on human tracheal glands (author's transl)].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009092:Mucous Membrane / Q000648:ultrastructure; D014132:Trachea / Q000648:ultrastructure*