@misc{indiciaecd8cf848d055,
  title = {Radiolabelled methotrexate: a warning.},
  author = {A H Calvert and M Jarman},
  year = {1979},
  doi = {10.1016/s0140-6736(79)90569-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/84197/},
  note = {Source identifier: 84197}
}