@misc{indiciae134373aa23fe,
  title = {Practice variation and physician-specific effects.},
  author = {Jostein Grytten and Rune Sørensen},
  year = {2003},
  doi = {10.1016/s0167-6296(02)00105-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/12683959/},
  note = {Source identifier: 12683959}
}