@misc{indiciae2dc60545a946,
  title = {[The cluster method in conducting epidemiological research].},
  author = {S K Litvinov and A V Lobanov and A N Peregudov},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3799117/},
  note = {Source identifier: 3799117}
}