Mohamed Maher Allam. “Speckle Tracking Echocardiography for the Early Detection of Subclinical Left Ventricular Systolic Dysfunction in Rheumatoid Arthritis”. The International Journal of Multiphysics 18, no. 3 (September 17, 2024): 6300 - 6308. Accessed August 23, 2026. https://themultiphysicsjournal.com/index.php/ijm/article/view/2349.