@misc{indiciae452d094934dd,
  title = {Instrument construction: Part II.},
  author = {R P Lederman and S Worsham},
  doi = {10.1097/00005721-199409000-00014},
  url = {https://pubmed.ncbi.nlm.nih.gov/7990677/},
  note = {Source identifier: 7990677}
}