@misc{indiciaecdab9be7792c,
  title = {Planning research.},
  author = {D Coggon},
  year = {1997},
  doi = {10.1093/occmed/47.4.247},
  url = {https://pubmed.ncbi.nlm.nih.gov/9231499/},
  note = {Source identifier: 9231499}
}