“Pioneers in the Dawn of Ozone Therapy The African Contribution to Ozone Therapy Dr. George Stoker (1854-1920)”. Ozone Therapy Global Journal 7, no. 1 (June 1, 2017): 105–110. Accessed August 23, 2026. https://journal.ozonetherapyglobaljournal.es/index.php/otgj/article/view/161.