@misc{indiciae3fadf4ece345,
  title = {Letter: Meperidine vs morphine.},
  author = {D W Westring and E Fribourg},
  year = {1974},
  doi = {10.1001/jama.230.11.1512d},
  url = {https://pubmed.ncbi.nlm.nih.gov/4479657/},
  note = {Source identifier: 4479657}
}