@misc{indiciae221867cef91b,
  title = {Etretinate. Persistent serum levels after long-term therapy.},
  author = {J J DiGiovanna and L A Zech and M E Ruddel and G Gantt and G L Peck},
  year = {1989},
  doi = {10.1001/archderm.125.2.246},
  url = {https://pubmed.ncbi.nlm.nih.gov/2913962/},
  note = {Source identifier: 2913962}
}