Giannitto C, Bonifacio C, Esposito S, Ammirabile A, Mercante G, De Virgilio A, Spriano G, Heffler E, Lofino L, Politi LS, Balzarini L. Sudden neck swelling with rash as late manifestation of COVID-19: a case report. BMC Infect Dis. 2021 Feb 27; 21(1):232.