@misc{indiciae6e9bb6ea6e9a,
  title = {Commerce versus collaboration.},
  author = {B A Helm and E A Padlan},
  year = {1991},
  doi = {10.1016/0140-6736(91)93304-r},
  url = {https://pubmed.ncbi.nlm.nih.gov/1675734/},
  note = {Source identifier: 1675734}
}