Costa, T., Rodrigues-Manica, S., Lopes, C., Gomes, J., Marona, J., Falcão, S. and Branco, J. (2018) “Ozone Therapy in Knee Osteoarthritis: A Systematic Review”, Acta Médica Portuguesa. Lisbon, Portugal, 31(10), pp. 576–580. doi: 10.20344/amp.10330.