Dr. Gregorio Martínez Sánchez (Italy). Pharmaceutical Sciences (Italy). Ph.D. Oxidative Stress expert. Member of AEPROMO (Spanish Association of Medical Professionals in Ozone Therapy). www.aepromo.org

President of ISCO3 (International Scientific Committee of ozonetherapy). www.isco3.org.

Member, Editorial Board, Editorial Committees and Appraiser Committee of the Spanish Journal of Ozone Therapy. http://www.xn--revistaespaoladeozonoterapia-7xc.es/index.php/reo

Professor, course of “University Diploma in Ozone Therapy and Ozonated Growth Factors”, King Juan Carlos University, Madrid, 2013-2014; 2014-2015 editions.

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