@misc{indiciae2077ad283c1b,
  title = {The teaching laboratories.},
  author = {M S Marshall},
  year = {1973},
  doi = {10.1097/00001888-197305000-00014},
  url = {https://pubmed.ncbi.nlm.nih.gov/4699428/},
  note = {Source identifier: 4699428}
}