El-Khoueiry, A. B., Sangro, B., Yau, T., Crocenzi, T. S., Kudo, M., Hsu, C., Kim, T., Choo, S., Trojan, J., Welling, T. H., Meyer, T., Kang, Y., Yeo, W., Chopra, A., Anderson, J., dela Cruz, C., Lang, L., Neely, J., Tang, H., Dastani, H. B., & Melero, I. (2017). nivolumab in patients with advanced hepatocellular carcinoma (CheckMate 040): an open-label, non-comparative, phase 1/2 dose escalation and expansion trial. Lancet, 389(10088), 2492–2502. http://access.bl.uk/ark:/81055/vdc_100046950464.0x000057