1. Cruveilhier L. Action du serum antipneumococcique au cours de la pneumonie et dans les complications de la grippe. Annales de l'Institut Pasteur 1919; 33:448-61.
2. United States Department of Health and Human Services (HHS). HHS pandemic influenza plan. Washington, DC: US Government Printing Office, 2005. Available at: http://www.hhs.gov/pandemicflu/plan/pdf/HHSPandemicInfluenzaPlan.pdf. Accessed 16 June 2008.
3. The 1918 Influenza Pandemic: Insights for the 21st Century
4. A STUDY OF EXCESS MORTALITY DURING INFLUENZA EPIDEMICS IN THE UNITED STATES, 1968–19761