TY - RPRT TI - Reduced responsiveness of the reward system underlies tolerance to cannabis impairment in chronic users AU - Mason, N. L. AU - Theunissen, E. L. AU - Hutten, N. R. P. W. AU - Tse, D. H. Y. AU - Toennes, S. W. AU - Jansen, J. F. A. AU - Stiers, P. AU - Ramaekers, J. G. PY - 2019 DO - 10.1101/708677 UR - https://www.biorxiv.org/content/10.1101/708677v1 ID - 10.1101/708677 ER -