@misc{indiciae922cd3120f2c,
  title = {Lingual ascorbic acid test and gingivitis.},
  author = {B Häkkinen and A V Rantanen},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4508899/},
  note = {Source identifier: 4508899}
}