Medicina Familiar
http://www.jfp.msu.edu

Medicina Familiar Española
http://www.semfyc.es

México
http://www.stps.gob.mx/index.html

Ministerio de Salud y Desarrollo Social - Venezuela
http://www.msds.gov.ve

M - N - O - P

NAT (Niñas y Niños Trabajadores)

http://www.pronats.de
http://www.ifejant.org
http//es.kraetzae.de/home
http://www.derechosinfancia.org.mx
http://www.enda.sn/eja
http://www.workingchild.org
http://www.italianats.org
http://www.unicef.org

National Institute of Working Life (Sweden)
http://www.niwl.se

National Institute of Occupational Health (Denmark)
http://www.fsk.dk/dgri/1966/ami.html

National Institute for Occupational Safety and Health -NIOSH- (USA)
http://www.cdc.gov/niosh/homepage.html

National Institute of Enviromental Health Sciences -NIEHS- (USA)
http://www.niehs.nih.gov

National Safety Council -NSC- (USA)
http://www.nsc.org/

National Occupational Health and Safety Commission -NOHSC- (Australia)
http://www.worksafe.gov.au

Network of Center collaborating with the WHO
http://www.ccohs.ca/who/ccnew.htm

Neumonología
http://www.lungusa.org

Neumonología Española
http://www.separ.es

NIA - TNO (Holland)
http://www.nia.tno.nl/english.htm

NIOSH (USA)
http://www.cdc.gov/niosh/otherwww.html

Nordic Institute fndor Advanced Training in occupational health NIVA (Finla)
http://www.occuphealth.fi/niva

M - N - O - P

OIT- Organización Interamericana del Trabajo
http://www.ilo.org

OIT/Safework
http://www.ilo.org/public/english/protection/safework

Occupational Safety and Health Administration

-OSHA- (USA)
http://www.osha.gov

Organizacion Mundial de la Salud
http://www.who.org

Organizacion Panamericana de la Salud
http://www.paho.org

OSHWEB OIT - CIS
http://www.turva.me.tut.fi/~oshweb

Other French Institutions
http://www.ilo.org/public/english/protection/safework

M - N - O - P

Programa de Prevencion y Promocion de Salud
http://www.papps.org

Publicaciones de la Osha
http://www.osha.gov/oshpubs/poster2.html

http://www.prevent.be