@misc{indiciae7bbbefdffeab,
  title = {Treatment studies: efficacy vs. effectiveness.},
  author = {J Down},
  year = {1994},
  doi = {10.3171/jns.1994.80.5.0956},
  url = {https://pubmed.ncbi.nlm.nih.gov/8169649/},
  note = {Source identifier: 8169649}
}