@misc{indiciae475268dab9a5,
  title = {Guidelines for transition to unidirectional flow system.},
  author = {R Thomas},
  year = {1977},
  doi = {10.1016/s0001-2092(07)67795-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/586137/},
  note = {Source identifier: 586137}
}