Outcomes and biomarker analyses among patients with COVID-19 treated with interleukin 6 (IL-6) receptor antagonist sarilumab at a single institution in Italy ============================================================================================================================================================= * Vincenzo Montesarchio * Roberto Parrella * Chiara Iommelli * Antonella Bianco * Elio Manzillo * Fiorentino Fraganza * Cristiana Palumbo * Gaetano Rea * Patrizia Murino * Rosanna De Rosa * Luigi Atripaldi * Maurizio D’Abbraccio * Marcello Curvietto * Domenico Mallardo * Egidio Celentano * Antonio Maria Grimaldi * Marco Palla * Claudia Trojaniello * Maria Grazia Vitale * Samuel Lewis Million-Weaver * Paolo Antonio Ascierto