Letter to the editor regarding "Lack of supporting data make the risks of a clinical trial of radiation therapy as a treatment for COVID-19 pneumonia unacceptable". (September 2020) - Magrini, Stefano Maria; Katz, Matthew S.; Tomasini, Davide; Sasso, Giuseppe; Triggiani, Luca; Buglione di Monale e Bastia, Michela; Spiazzi, Luigi