@misc{indiciae70d2cbd95af4,
  title = {Unidirectional flow vs traditional system.},
  author = {R Thomas},
  year = {1980},
  doi = {10.1016/s0001-2092(07)61294-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6899754/},
  note = {Source identifier: 6899754}
}