@misc{indiciae1efed018e424,
  title = {A simple method for analysing overdispersion in clustered Poisson data.},
  author = {J N Rao and A J Scott},
  year = {1999},
  doi = {10.1002/(sici)1097-0258(19990615)18:11<1373::aid-sim133>3.0.co;2-f},
  url = {https://pubmed.ncbi.nlm.nih.gov/10399202/},
  note = {Source identifier: 10399202}
}