Extensive-stage small-cell lung cancer in patients receiving atezolizumab plus carboplatin–etoposide: stratification of outcome based on a composite score that combines gene expression profiling and immune characterization of microenvironment ==================================================================================================================================================================================================================================================== * Anna Tosi * Martina Lorenzi * Paola Del Bianco * Anna Roma * Alberto Pavan * Antonio Scapinello * Maria Vittoria Resi * Laura Bonanno * Stefano Frega * Fiorella Calabrese * Valentina Guarneri * Antonio Rosato * Giulia Pasello