Hashemi, M. .; Falsafi, M. .; Reza Razzaghi, M. .; Dadkhah, P. .; Taheri, M. .; Delshad, M. H.; Zali, A. . The Long-Term Effects of Percutaneous Laser Disc Decompression (PLDD) Treatment on Lumbar Disc Protrusion: A 2-Year Follow-up. J laser Med Sci 2020, 11, 427-432.