@misc{indiciae761391d7b1e6,
  title = {Diving into the unknown.},
  author = {C L Gibbons and A D McLain and A H Simpson},
  year = {1991},
  doi = {10.1136/bmj.302.6782.963-c},
  url = {https://pubmed.ncbi.nlm.nih.gov/2032049/},
  note = {Source identifier: 2032049}
}