@misc{indiciaed9d9715e2de4,
  title = {Narcotic analgesia--ceiling effect.},
  author = {B Kay},
  year = {1985},
  doi = {10.1097/00000542-198503000-00035},
  url = {https://pubmed.ncbi.nlm.nih.gov/2858172/},
  note = {Source identifier: 2858172}
}