TY - RPRT TI - Immune checkpoint proteins are conserved across 160 million years of evolution and are expressed on transmissible cancers AU - Flies, A. S. AU - Darby, J. M. AU - Lennard, P. R. AU - Murphy, P. R. AU - Ong, C. E. B. AU - Pinfold, T. L. AU - Lyons, A. B. AU - Woods, G. M. AU - Patchett, A. L. PY - 2019 DO - 10.1101/831404 UR - https://www.biorxiv.org/content/10.1101/831404v1 ID - 10.1101/831404 ER -