Nursing staff in ERs, ICUs and Cardiac Units: Demographic profile and knowledge of Advanced Life Support before and after the COVID-19 pandemic. - George, Kipourgos; Grigorios, Kourtis; Konstantina, Karanikola; Eleni, Albani; Anastasios, Tzenalis (Rostrum of Asclepius / Vima tou Asklipiou, 2024)