@misc{indiciaeeef0f227ed2b,
  title = {Providing value for vision care services.},
  author = {P R Lichter},
  year = {1994},
  doi = {10.1016/s0161-6420(94)31256-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/8190462/},
  note = {Source identifier: 8190462}
}