@misc{indiciaecc95d109f866,
  title = {Trends in second-generation PPOs.},
  author = {P Boland},
  year = {1987},
  doi = {10.1377/hlthaff.6.4.75},
  url = {https://pubmed.ncbi.nlm.nih.gov/3428854/},
  note = {Source identifier: 3428854}
}