@misc{indiciae037a4cc48aae,
  title = {Active life expectancy.},
  author = {S Katz and L G Branch and M H Branson and J A Papsidero and J C Beck and D S Greer},
  year = {1983},
  doi = {10.1056/nejm198311173092005},
  url = {https://pubmed.ncbi.nlm.nih.gov/6633571/},
  note = {Source identifier: 6633571}
}