@misc{indiciaeaee9faa51a83,
  title = {The prone position. Using gravity for a clear view.},
  author = {J J Bannenberg and D W Meijer and P J Klopper},
  year = {1994},
  doi = {10.1007/bf00705734},
  url = {https://pubmed.ncbi.nlm.nih.gov/7992189/},
  note = {Source identifier: 7992189}
}