North American Association for Laser Therapy (NALLT)
http://www.naalt.org
The American Society of Lasers in Surgery and Medicine (ASLMS)
http://www.aslms.org
American Society for PhotoBiology
http://www.photobiology.org
US Food & Drug Administration (FDA)
http://www.fda.gov
SPIE, TheInternational Society for Optics and Photonics
http://spie.org
The World Association for Laser Therapy (WALT)
http://www.walt.nu