Cespedes-Suarez, J., Martin-Serrano, Y., Carballosa-Peña, M. R., & Dager-Carballosa, D. R. (2018). Clinical study of patients with heart failure under treatment with ozone therapy. Journal of Ozone Therapy, 2(3). https://doi.org/10.7203/jo3t.2.3.2018.11461