Gous, M, et al. “Ultrasound Comparison of the Effects of Prehabilitation Exercises and the Scapular Assistance Test on the Acromiohumeral Distance”. South African Journal of Sports Medicine, vol. 29, no. 1, Nov. 2017, pp. 1-6, doi:10.17159/2078-516X/2017/v29i1a3439.