@misc{indiciae58501d7c4e08,
  title = {[Ulcerative necrotizing gingivitis. Statistical analysis of different parameters].},
  author = {B O Barletta and C R Plot and R G Caffese},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4511663/},
  note = {Source identifier: 4511663}
}