@misc{indiciaeb38bce9d11af,
  title = {Controlled release morphine.},
  author = {G W Hanks and N M Rose and G W Aherne and E M Piall},
  year = {1981},
  doi = {10.1016/s0140-6736(81)92273-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6112472/},
  note = {Source identifier: 6112472}
}