@misc{indiciae4c66e5256191,
  title = {Gingival ulceration due to improper toothbrushing.},
  author = {B Blasberg and A Jordan-Knox and R J Conklin},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7023631/},
  note = {Source identifier: 7023631}
}