@misc{indiciae9e19fda0cf57,
  title = {Opportunities for clarification.},
  author = {J Black},
  year = {1993},
  doi = {10.1097/00006527-199301340-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/8121945/},
  note = {Source identifier: 8121945}
}