Saffan, A. M. M., A. M. E. Zedan, and R. K. A. Elrazik. “Painful Calcaneal Spur Often Misdiagnosed for Lumbar Radicular Pain”. International Journal of Health Sciences, vol. 6, no. S2, Mar. 2022, pp. 1071-80, doi:10.53730/ijhs.v6nS2.5147.