1. Occupational Safety and Health Administration. Standard interpretation: tuberculosis and respiratory protection. July 30, 2004. Available from: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=24895. Accessed March 20, 2009.
2. Occupational Safety and Health Administration. Information regarding severe acute respiratory syndrome (SARS). May 30, 2003. Available from: http://www.osha.gov/dep/sars/. Accessed April 3, 2009.
3. National Institute for Occupational Safety and Health. Understanding respiratory protection against SARS. July 8, 2003. Available from: http://www.cdc.gov/niosh/npptl/topics/respirators/factsheets/respsars.html. Accessed March 22, 2009.
4. CDC. Guidelines for preventing the transmission of Mycobacterium tuberculosis in health-care settings. December 30, 2005. MMWR Morb Mortal Wkly Rep 2005. Available from: http://www.cdc.gov/mmwr/PDF/rr/rr5417.pdf. Accessed March 15, 2009.
5. Compliance with universal precautions among emergency department personnel caring for trauma patients;Evanhoff;Ann Emerg Med,1999