title: [Defense mechanisms of the respiratory system in children].
mesh_terms: D002648:Child; D006801:Humans; D007111:Immunity, Cellular; D007070:Immunoglobulin A / Q000502:physiology*; D007071:Immunoglobulin A, Secretory / Q000502:physiology*; D007136:Immunoglobulins / Q000032:analysis; D008168:Lung / Q000276:immunology; D009297:Nasal Mucosa / Q000276:immunology; D012137:Respiratory System / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007071:Immunoglobulin A, Secretory; D007136:Immunoglobulins
vernacular_title: Mecanismele de apărare ale aparatului respirator la copil.