@misc{indiciaefb268511174e,
  title = {SEROLOGIC STRAIN DIFFERENTIATION IN TRACHOMA.},
  author = {R L NICHOLS and D E MCCOMB},
  year = {1964},
  doi = {10.1084/jem.120.4.639},
  url = {https://pubmed.ncbi.nlm.nih.gov/14217913/},
  note = {Source identifier: 14217913}
}