@misc{indiciaef051afd15150,
  title = {Two new instruments.},
  author = {R C Drews},
  year = {1981},
  doi = {10.1016/s0146-2776(81)80047-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7349660/},
  note = {Source identifier: 7349660}
}