Gianfredi, Vincenza, et al. “Immediate Adverse Events Following COVID-19 Immunization. A Cross-Sectional Study of 314,664 Italian subjects.: Immediate Adverse Events Following COVID-19 Immunization”. Acta Biomedica Atenei Parmensis, vol. 92, no. S6, Oct. 2021, p. e2021487, https://doi.org/10.23750/abm.v92iS6.12365.