@unpublished{MasonTheunissenHuttenetal.2019,
  author  = {Natasha L. Mason and Eef L. Theunissen and Nadia R. P. W. Hutten and Desmond H. Y. Tse and Stefan W. T{\"o}nnes and Jacobus F. A. Jansen and Peter Stiers and Johannes G. Ramaekers},
  title   = {Reduced responsiveness of the reward system underlies tolerance to cannabis impairment in chronic users},
  institution = {Medizin},
  pages     = {26},
  year    = {2019},
}