[\'Department of Medical Sciences and Public Health, Forensic Medicine Unit, University of Cagliari, Cagliari, Italy.\', \'Department of Surgical Science, Eye Clinic, University of Cagliari, Cagliari, Italy.\']
COVID-19 and Italian Healthcare Workers From the Initial Sacrifice to the mRNA Vaccine: Pandemic Chrono-History, Epidemiological Data, Ethical Dilemmas, and Future Challenges.