Fil Balkan, Ayla, and Yeliz Salci. “Fall Related Self Efficacy: A Significant Barrier for Physical Activity in Ambulatory Multiple Sclerosis Patients”. Annals of Medical Research 26, no. 12 (May 25, 2021): 2728–2732. Accessed May 19, 2024. http://www.annalsmedres.org/index.php/aomr/article/view/1926.