Imtiaz, Madiha, et al. “Ultrasound Findings in Adult Patients With Chronic Shoulder Pain Having No History of Trauma”. Journal of Liaquat University of Medical & Health Sciences, vol. 22, no. 04, Dec. 2023, pp. 295-9, http://121.52.154.205/index.php/jlumhs/article/view/1138.