Systematic review and meta-analysis of immune checkpoint inhibitors as single agent or in combination with chemotherapy in early-stage non-small cell lung cancer: Impact of clinicopathological factors and indirect comparison between treatment strategies

A. Nuccio, Giuseppe Viscardi, Fabio Salomone, Alberto Servetto, F.M. Venanzi, Silvia Teresa Riva, Sara Oresti, Francesca Rita Ogliari, Mariagrazia Viganò, Alessandra Bulotta, Robert B. Cameron, A. Esposito, Jacobi Hines, Roberto Bianco, Michele Reni, Tina Cascone, Marina Chiara Garassino, Valter Torri, Giulia Veronesi, Michela Cinquini, Roberto Ferrara