@misc{indiciaec81d1625f815,
  title = {A different refresher "course".},
  author = {D L Bellersen},
  year = {1972},
  doi = {10.1097/00006247-197204000-00012},
  url = {https://pubmed.ncbi.nlm.nih.gov/4481377/},
  note = {Source identifier: 4481377}
}