Dellepiane, R.M. and Vaccini della SIAIP, C. 2023. Risk of second allergic reaction to SARS-CoV-2 vaccines: a systematic review and meta-analysis: D.K. Chu, E.M. Abrams, D.B.K. Golden, et al. Italian Journal of Pediatric Allergy and Immunology. 37, 1 (Mar. 2023).