Figure 4From: Effect of photodynamic therapy on local muscle treatment in a rat muscle injury model: a controlled trialNear-infrared laser irradiation system (light-emitting diode (LED) device, 810 nm; power, 0.1 W/cm2; irradiation time, 30 s). (A) LED device. (B) Covering the LED except the targeting spot. (C) Irradiation to the rat at 18 h after muscle injury.Back to article page