Potential Cytoprotective Activity of Ozone Therapy in SARS-CoV-2/COVID-19 Gregorio Martínez-Sánchez 1,*, Adriana Schwartz 2 and Vincenzo Di Donna 3 1. Scientific advisor, Freelance, 60126 Ancona, Italy 2. Clinica Fiorela Madrid, 28035 Madrid, Spain; adriana@clinicafiorela.com 3. Dama Salus Medical Center, 76125...