@misc{indiciae70c6e446f6af,
  title = {Ethical study design.},
  author = {J D Shelton},
  year = {2001},
  doi = {10.1016/s0140-6736(01)05982-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/11570403/},
  note = {Source identifier: 11570403}
}