@misc{indiciaed78b862a13e8,
  title = {Certificate for restricted activities.},
  author = {D B Wilson},
  year = {1982},
  doi = {10.5694/j.1326-5377.1982.tb132547.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7155040/},
  note = {Source identifier: 7155040}
}