@misc{indiciaebfc67b784ff3,
  title = {EMS systems: opening the 'black box'.},
  author = {R F Maio},
  year = {1993},
  doi = {10.1016/s0196-0644(05)81858-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8457105/},
  note = {Source identifier: 8457105}
}