Balkaran, R. L. (2020) “The Use of the Slipping Slipper Sign to Explore the Connection between the Feet and the Mouth in Patients with Diabetes Mellitus”, Puerto Rico Health Sciences Journal, 39(2), pp. 216–221. Available at: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2027 (Accessed: 31 October 2025).