@misc{indiciaec72e4fe877c9,
  title = {Average age at first occurrence as an alternative occurrence parameter in epidemiology.},
  author = {H C Boshuizen and S Greenland},
  year = {1997},
  doi = {10.1093/ije/26.4.867},
  url = {https://pubmed.ncbi.nlm.nih.gov/9279621/},
  note = {Source identifier: 9279621}
}