Villamar, Mauricio F., Vanessa Suárez Contreras, Richard E. Kuntz, and Felipe Fregni. 2012. “The Reporting of Blinding in Physical Medicine and Rehabilitation Randomized Controlled Trials: A Systematic Review”. Journal of Rehabilitation Medicine 45 (1):6-13. https://doi.org/10.2340/16501977-1071.