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Effect of different wavelengths in tLLLT in closed head TBI in mice. (A) Sham-treated control versus 665 nm laser. (B) Sham-treated control versus 730 nm laser. (C) Sham-treated control versus 810 nm laser. (D) Sham-treated control versus 980 nm laser. Points are means of 8–12 mice and bars are SD. *p < 0.05; **p < 0.01; ***p < 0.001 (one-way analysis of variance). NSS, neurological severity score; SD, standard deviation; TBI, traumatic brain injury; tLLLT, transcranial LLLT.
