Renate Viebahn-Hänsler, PhD (Dr.rer.nat.) in X-ray structure analysis in solid state chemistry at the Tübingen University, Germany. Specialized in technology and pharmacology of medical ozone for 4 decades. Executive Board Member of the “Medical Society for Ozone Application in Prevention and Therapy”. Board Member of the International Ozone Association IOA and editorial board member of the scientific journal of the IOA: Ozone: Science & Engineering”. President of the International Ozone Association IOA-EA3G (European, African, Asian Group) 2023 and 2024. President elect of IOA 2026-2027.