Nursing staff fatigue and burnout during the COVID-19 pandemic in Greece. - Sikaras, Christos; Ilias, Ioannis; Tselebis, Athanasios; Pachi, Argyro; Zyga, Sofia; Tsironi, Maria; Gil, Andrea Paola Rojas; Panagiotou, Aspasia (AIMS Public Health, 2022)