@ARTICLE{10.3389/fimmu.2016.00332, AUTHOR={Vaupel, Peter and Multhoff, Gabriele}, TITLE={Commentary: A Metabolic Immune Checkpoint: Adenosine in Tumor Microenvironment}, JOURNAL={Frontiers in Immunology}, VOLUME={7}, YEAR={2016}, URL={https://www.frontiersin.org/articles/10.3389/fimmu.2016.00332}, DOI={10.3389/fimmu.2016.00332}, ISSN={1664-3224} }