Centers for Disease Control (CDC):

www.cdc.gov
Occupational Safety & Health Administration (OSHA): www.osha.gov
Guidelines for Employee Health Services in Health Care Facilities: www.occenvmed.net/ehsg/
Canadian Center for Occupational Health & Safety: www.ccohs.ca
World Health Organization (WHO): www.who.int/en/
First Gov – the Government’s Official Web Portal: www.firstgov.gov
US Department of Health & Human Services: www.hhs.gov
US Department of Transportation (DOT): www.dot.gov
US Department of Homeland Security: www.dhs.gov/dhspublic/
Federal Aviation Administration (FAA): www.faa.gov
The Coalition of Airline Pilots Associations: www.capapilots.org
Aerospace Medical Association: www.asma.org
World Medical Guide http://www.travmed.com