We have a clarification to make in our paper “Low-Level Laser Stimulation on Adipose-Tissue-Derived Stem Cell Treatments for Focal Cerebral Ischemia in Rats” [1]. Because the GAPDH gene is often stably and constitutively expressed at high levels in most cells and tissues, it is considered a housekeeping gene. For this reason, GAPDH is commonly used by biological researchers as a loading control for western blot. GAPDH was just used as internal control for gene expression analysis as it was supposed to have a uniform expression in both Figures 5(a) and 9(a).