title: US asks journals to censor bird flu studies.
mesh_terms: D023482:Bioterrorism; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype; D007251:Influenza, Human / Q000635:transmission / Q000821:virology*; D010506:Periodicals as Topic / Q000941:ethics*; D014481:United States