Ucciferri, C.; Auricchio, A.; Vecchiet, J.; Falasca, K. Improving BNT162b2 MRNA Vaccine Tolerability Without Efficacy Loss by Pidotimod Supplementation: Pidotimod in SARS-CoV-2 Vaccination. Mediterr J Hematol Infect Dis 2022, 14, e2022023.