@misc{indiciaee94e200822ca,
  title = {A developmental experience in prepaid group practice.},
  author = {L Kahn and G T Perkoff},
  year = {1973},
  doi = {10.1097/00001888-197304000-00018},
  url = {https://pubmed.ncbi.nlm.nih.gov/4633858/},
  note = {Source identifier: 4633858}
}