Lung ultrasound in ruling out COVID-19 pneumonia in the ED: a multicentre prospective sensitivity study
Carmine Cristiano Di Gioia1, Nicola Artusi1, Giovanni Xotta2, Marco Bonsano3, Ugo Giulio Sisto1, Marzia Tecchiolli1, http://orcid.org/0000-0001-7136-0343Daniele Orso4, Franco Cominotto1, Giulia Amore5, Stefano Meduri6, Roberto Copetti5 Abstract Purpose Early diagnosis of COVID-19 has a crucial