1. 1. U.S. Department of Health and Human Services. HHS Pandemic Influenza Plan, Supplement 4 Infection Control, 2004. Available at: http://www.hhs.gov/pandemicflu/plan/, Accessed on February 17, 2009.
2. Opinion-editorial: Face facts;Wein;New York Times
3. 3. Committee on Personal Protective Equipment for Healthcare Workers During an Influenza Pandemic, Institute of Medicine, National Academy of Sciences. Initial Meeting. Washington, DC. December 13, 2006.
4. Human influenza resulting from aerosol inhalation;Alford;Proceedings of the Society for Experimental Biology and Medicine,1966