Pulga, Antonello. “Association of Oxygen-Ozone Therapy With High-Power Photodynamic Therapy: A New Protocol for the Treatment of Periodontopathies”. Ozone Therapy 4, no. 3 (December 31, 2019): 55–63. Accessed May 6, 2024. https://www.pagepressjournals.org/ozone/article/view/8699.