@misc{indiciae4f066b810068,
  title = {After Helmholtz.},
  author = {F Roman},
  year = {1993},
  doi = {10.1136/bjo.77.11.730},
  url = {https://pubmed.ncbi.nlm.nih.gov/8280689/},
  note = {Source identifier: 8280689}
}