@misc{indiciae304908135e3f,
  title = {Breaking down the barrier.},
  author = {M Birchenall},
  year = {1988},
  doi = {10.7748/ns.2.17.42.s86},
  url = {https://pubmed.ncbi.nlm.nih.gov/3292951/},
  note = {Source identifier: 3292951}
}