title: The immunologic defence mechanism of the larynx and trachea; a preliminary report.
mesh_terms: D000818:Animals; D005455:Fluorescent Antibody Technique; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007830:Larynx / Q000276:immunology*; D009092:Mucous Membrane / Q000276:immunology; D051381:Rats; D014132:Trachea / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A