2021. COVID-19 or not COVID-19, that is the question. The role of screening criteria and point-of-care lung ultrasound in the triage decision-making process in an Emergency Department during the phase 2 of the COVID-19 Italian epidemic. Emergency Care Journal. 17, 2 (Jun. 2021). DOI:https://doi.org/10.4081/ecj.2021.9708.