title: [Effectiveness of anti-influenza vaccination].
mesh_terms: D006801:Humans; D007110:Immunity, Active; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control; D014586:USSR; D014611:Vaccination
chemical_list: D007252:Influenza Vaccines
vernacular_title: Ob éffektivnosti protivogrippoznoĭ vaktsinatsii.