title: Effect of N-CWS injection against influenza virus infection in the retired workers of the Okunojima Poison Gas factory.
mesh_terms: D005739:Gas Poisoning / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000276:immunology; D007251:Influenza, Human / Q000517:prevention & control*; D009615:Nocardia / Q000276:immunology*