Hamid, Omid, Igor Puzanov, Reinhard Dummer, Jacob Schachter, Adil Daud, Dirk Schadendorf, Christian Blank, et al. 2017. “Final Analysis of a Randomised Trial Comparing Pembrolizumab versus Investigator-Choice Chemotherapy for Ipilimumab-Refractory Advanced Melanoma.” European Journal of Cancer 86 (November): 37–45. http://doi.org/10.1016/j.ejca.2017.07.022.