@article{spitzer2006,
  title={A Brief Measure for Assessing Generalized Anxiety Disorder},
  author={Robert L. Spitzer and Kurt Kroenke and Janet B. W. Williams and Bernd Löwe},
  year={2006},
  journal={Archives of Internal Medicine},
  doi={10.1001/archinte.166.10.1092},
  url={https://doi.org/10.1001/archinte.166.10.1092}
}