Caruso, Rosario, et al. “Burnout and Post-Traumatic Stress Disorder in Frontline Nurses During the COVID-19 Pandemic: A Systematic Literature Review and Meta-Analysis of Studies Published in 2020: COVID-19, Burnout, and PTSD in Nurses ”. Acta Biomedica Atenei Parmensis, vol. 92, no. S2, Dec. 2021, p. e2021428, https://doi.org/10.23750/abm.v92iS2.11796.