Mainini, Marco, Maria Laura Rosato, Margherita Luongo, Luigi Mascolo, Silvana Mattera, and Luca Schiaffino. “Oxygen-Ozone Therapy and Local Administration Induced Pain”. Ozone Therapy 2, no. 1 (May 30, 2017). Accessed April 28, 2024. https://www.pagepressjournals.org/ozone/article/view/6742.