Saber, N., H. Diab, W. Nassar, and H. Razaak. “Ultrasound Guided Local Steroid Injection Versus Extracorporeal Shockwave Therapy in the Treatment of Plantar Fasciitis”. Alexandria Journal of Medicine, vol. 48, no. 1, June 2012, doi:10.4314/bafm.v48i1.