@misc{indiciaea5844684dd74,
  title = {Research methods used in developing and applying quality indicators in primary care.},
  author = {S M Campbell and J Braspenning and A Hutchinson and M N Marshall},
  year = {2003},
  doi = {10.1136/bmj.326.7393.816},
  url = {https://pubmed.ncbi.nlm.nih.gov/12689983/},
  note = {Source identifier: 12689983}
}