[Assessment of the efficacy of mass influenza vaccinations. II].
D000917:Antibody Formation; D006801:Humans; D007110:Immunity, Active; D007115:Immunization Schedule; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*; D012141:Respiratory Tract Infections / Q000517:prevention & control; D014586:USSR
D007252:Influenza Vaccines
Otsenka éffektignosti massovykh privivok protiv grippa. II.