@misc{indiciae192004a3ae0c,
  title = {Death after intrathecal methotrexate.},
  author = {E H Back},
  year = {1969},
  doi = {10.1016/s0140-6736(69)90554-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4186953/},
  note = {Source identifier: 4186953}
}