Impact of immunosuppressive therapy on the severity of COVID-19 in solid organ transplant recipients. Issue 3 (March 2021) - Merli, Marco; Pasulo, Luisa; Perricone, Giovanni; Travi, Giovanna; Rossotti, Roberto; Colombo, Valeriana Giuseppina; De Carlis, Riccardo; Chiappetta, Stefania; Moioli, Maria Cristina; Minetti, Enrico; Frigerio, Maria; De Carlis, Luciano Gregorio; et al.