Impact of COVID-19 pandemic and lockdown on emergency room access in Northern and Central Italy oleh Fabrizio Giostra, Maria Grazia Mirarchi, Gabriele Farina, Ciro Paolillo, Catello Sepe, Francesca Benedusi, Andrea Bellone, Lorenzo Ghiadoni, Greta Barbieri, Massimo Santini, Grazia Guiddo, Alessandro Riccardi, Roberto Lerza, Daniele Coen