The analgesic effect of 904 nm gallium arsenide semiconductor low level laser therapy (LLLT) on osteoarticular pain: a report on 938 irradiated patients

What the authors concluded

The GaAs laser equipment used has a wavelength of 904 nm. The laser is pulsed, pulse width of 200 nsec, pulse frequency 10,000 Hz, a peak power of 20 W and an average power of 40 mW. The patients were treated five times a week on several points with doses of 6-10 J/cm2 on each point in the painful area or areas. The efficacy of the laser treatment at the end of 10 sessions was evaluated using a c