Durvalumab and tremelimumab with or without stereotactic body radiation therapy in relapsed small cell lung cancer: a randomized phase II study oleh Shuhua Wang, Suresh Ramalingam, Sagar Lonial, Walter Curran, Edmund K Waller, Bassel Nazha, Taofeek K Owonikoko, Conor Steuer, Suchita Pakkala, Kristin Higgins, Zhengjia Chen, Gabriel Sica, Guojing Zhang, Mohammad S Hossain, Tyler Beardslee, Fadlo R Khuri