title: Recurring infections of the upper respiratory tract and behaviour of serum immunoglobulins.
mesh_terms: D000361:Agammaglobulinemia / Q000150:complications; D001260:Ataxia Telangiectasia / Q000150:complications; D006801:Humans; D007111:Immunity, Cellular; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins; D010031:Otitis / Q000276:immunology; D014066:Palatine Tonsil; D012008:Recurrence; D012141:Respiratory Tract Infections / Q000150:complications / Q000276:immunology*; D014923:Wiskott-Aldrich Syndrome / Q000150:complications
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins