Gutierrez , D.; Rouabhia, M.; Ortiz, J.; Gaviria, D. .; Alfonso, C.; Muñoz, A.; Inostroza, C. Low-Level Laser Irradiation Promotes Proliferation and Differentiation on Apical Papilla Stem Cells: Low-Level Irradiation Effect on Apical Papilla Stem Cells. J laser Med Sci 2021, 12, e75.