@misc{indiciae15f1a0914789,
  title = {Solid-phase extraction protocol for isolating retinol-d4 and retinol from plasma for parallel processing for epidemiological studies.},
  author = {S R Dueker and J M Lunetta and A D Jones and A J Clifford},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8222228/},
  note = {Source identifier: 8222228}
}