Ceyda Akın, et al. “Short-Term Effectiveness of Ultrasound Treatment in Patients With Lateral Epicondylitis: Randomized, Single-Blind, Placebo-Controlled, Prospective Study”. Archives of Rheumatology, vol. 25, no. 2, June 2010, pp. 050-5, doi:10.5152/tjr.2010.01.