@misc{indiciae05c9fad35ab8,
  title = {Proceedings: Gingivitis and Vibrio.},
  author = {W H van Palenstein Helderman},
  year = {1974},
  doi = {10.1007/bf00394398},
  url = {https://pubmed.ncbi.nlm.nih.gov/4545582/},
  note = {Source identifier: 4545582}
}