Babaei-Ghazani, A., Fadavi, H. R., Eftekharsadat, B., Ebadi, S., Ahadi, T., Ghazaei, F., Khabbaz, M. S. A Randomized Control Trial of Comparing Ultrasound-Guided Ozone (O2-O3) vs Corticosteroid Injection in Patients With Shoulder Impingement. American Journal of Physical Medicine & Rehabilitation 2019; 11: 1018-1025