@misc{indiciaecea536646ce7,
  title = {Charges for preventive services.},
  author = {S Birch},
  year = {1988},
  doi = {10.1016/s0140-6736(88)91099-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/2893071/},
  note = {Source identifier: 2893071}
}