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