@article{group1990,
  title={EuroQol - a new facility for the measurement of health-related quality of life},
  author={The EuroQol Group},
  year={1990},
  journal={Health Policy},
  doi={10.1016/0168-8510(90)90421-9},
  url={https://doi.org/10.1016/0168-8510(90)90421-9}
}