@misc{indiciae761964ed3272,
  title = {Natural experiments and collaborative research.},
  author = {N Oswald},
  year = {2000},
  doi = {10.1046/j.1365-2923.2000.00602.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10607269/},
  note = {Source identifier: 10607269}
}