@misc{indiciaee75fa4152fcb,
  title = {Computing man years at risk.},
  author = {I D Hill},
  year = {1972},
  doi = {10.1136/jech.26.2.132},
  url = {https://pubmed.ncbi.nlm.nih.gov/5047161/},
  note = {Source identifier: 5047161}
}