@misc{indiciae82edebd4e22f,
  title = {Morphine physical dependence unaltered by previous dependence on morphine.},
  author = {E Wei and H Loh},
  year = {1972},
  doi = {10.1038/238396a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4559582/},
  note = {Source identifier: 4559582}
}