Data utworzenia:
05.11.2007
Aktualizacja: 14.05.2015
opracowanie na podstawie: Effectiveness of an influenza vaccine programme for care home staff to prevent death, morbidity, and health service use among residents: cluster randomised controlled trial
A.C. Hayward, R. Harling, S. Wetten, A.M. Johnson, S. Munro, J. Smedley, S. Murad, J.M. Watson
BMJ, 2006; 333: 1241–1244