@misc{indiciaea36292af5096,
  title = {Clinical trials: impact evaluation and implementation considerations.},
  author = {C Engelking},
  year = {1992},
  doi = {10.1016/0749-2081(92)90030-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/1621005/},
  note = {Source identifier: 1621005}
}