@misc{indiciae297a644a0a26,
  title = {N.B.T. test.},
  author = {R Freeman and B King},
  year = {1972},
  doi = {10.1016/s0140-6736(72)91765-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4114748/},
  note = {Source identifier: 4114748}
}