@misc{indiciae1c9a781b841e,
  title = {Do all systems age together?},
  author = {A Aihie Sayer and C Osmond and R Briggs and C Cooper},
  year = {1999},
  doi = {10.1159/000022068},
  url = {https://pubmed.ncbi.nlm.nih.gov/9933730/},
  note = {Source identifier: 9933730}
}