Comprehensive statistical analysis reveals significant benefits of COVID-19 vaccination in hospitalized patients: propensity score, covariate adjustment, and feature importance by permutation. - de Moraes EV; Pires MC; Costa AAA; Nunes AGS; de Amorim CL; Manenti ERF; Lucas FB; Rodrigues FD; Anschau F; do Nascimento GF; Vietta GG; Moreira JFB; et al. (BMC infectious diseases, 2024)