Efficacy of PD-(L)1 blockade monotherapy compared with PD-(L)1 blockade plus chemotherapy in first-line PD-L1-positive advanced lung adenocarcinomas: a cohort study ==================================================================================================================================================================== * Arielle Elkrief * Joao M Victor Alessi * Biagio Ricciuti * Samantha Brown * Hira Rizvi * Isabel R Preeshagul * Xinan Wang * Federica Pecci * Alessandro Di Federico * Giuseppe Lamberti * Jacklynn V Egger * Jamie E Chaft * Charles M Rudin * Gregory J Riely * Mark G Kris * Marc Ladanyi * Yuan Chen * Matthew D Hellmann * Ronglai Shen * Mark M Awad * Adam J Schoenfeld