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Biphasic dose response studies of LLLT in clinical studies.
| Year | Patients | Laser characteristics | Fluence | Irradiance | Reference |
|---|---|---|---|---|---|
| 1997 | Patients with post herpetic neuralgia of the facial type | 830nm lasers; 60mW laser and 150mW laser; irradiance point at 4mm in diameter | Pain reduction greater at 150mW laser; less at 60mW laser when exposure to the same time. | Hashimoto et al. 1997 |
