@misc{indiciaeb3774b372e0d,
  title = {Developing an epidemiologic field team for drug dependence.},
  author = {P H Hughes and G A Crawford and N W Barker},
  year = {1971},
  doi = {10.1001/archpsyc.1971.01750110001001},
  url = {https://pubmed.ncbi.nlm.nih.gov/5581262/},
  note = {Source identifier: 5581262}
}