Instituto Nacional de Medicina y Seguridad del Trabajo
http://www.inmst.es/

American Association of Occupational Health Nurses
http://http://www.aaohn.org/

American College of Occupational and Environmental Medicine
http://www.acoem.org/

Association of Occupational and Enviromental Clinics
http://www.aoec.org/

Center for Occupational & Environmental Medicine
http://www.coem.com/

European Agency for Safety and Health at Work
http://wurope.osha.eu.int/

Instituto Nacional de Medicina y Seguridad del Trabajo
http://www.inmst.es/

International Occupational Safety and Health Information Center
http://www.ilo.org/public/english/protection/safework/cis/

National Institute for Occupational Safety and Health
http://www.cdc.gov/niosh/homepage.html/

Occupational Safety & Health Administration.U.S. Department of Labor
http://www.osha.gov/

Secretaría de Estado. Seguridad Social en Línea
http://www.ot.wustl.edu/