@misc{indiciae87694d239d07,
  title = {Insulin pen injectors.},
  author = {R A Fisken},
  year = {1989},
  doi = {10.1016/s0140-6736(89)92607-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2564594/},
  note = {Source identifier: 2564594}
}