Petrone, D., C. Sacco, A. Mateo-Urdiales, E. A. Fotakis, M. Alfò, P. Pezzotti, and M. Fabiani. “Comparing Results from a Traditional Multivariable Model and Seven Propensity Score-Based Models for Estimating COVID-19 Vaccine Effectiveness”. Annali dell’Istituto Superiore Di Sanità, vol. 61, no. 4, Dec. 2025, pp. 277-84, doi:10.4415/ANN_25_04_06.