@misc{indiciaed4bfa39d0481,
  title = {Research and understanding.},
  author = {J McMichael},
  year = {1973},
  doi = {10.1136/pgmj.49.573.441},
  url = {https://pubmed.ncbi.nlm.nih.gov/4793497/},
  note = {Source identifier: 4793497}
}