Al- Iedani, Mohammed S. , et al. “Ultrasound of the Rotator Cuff: A Comparison of Ultrasonographic and Physical Examination Finding in Seventy Consecutive Cases”. AL-Kindy College Medical Journal, vol. 8, no. 1, June 2012, pp. 63-68, https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/614.