@misc{indiciaea738ba057a99,
  title = {Descriptive statistics.},
  author = {J S Bulman and J F Osborn},
  year = {1989},
  doi = {10.1038/sj.bdj.4806708},
  url = {https://pubmed.ncbi.nlm.nih.gov/2917091/},
  note = {Source identifier: 2917091}
}