The impact of the COVID-19 pandemic on healthcare-associated infections in intensive care unit patients: a retrospective cohort study oleh V. Baccolini, G. Migliara, C. Isonne, B. Dorelli, L. C. Barone, D. Giannini, D. Marotta, M. Marte, E. Mazzalai, F. Alessandri, F. Pugliese, G. Ceccarelli, C. De Vito, C. Marzuillo, M. De Giusti, P. Villari