@misc{8641,
  author = {N. Hazra and M. Gulliford},
  title = {Evolution of the "fourth stage" of epidemiologic transition in people aged 80~years and over: population-based cohort study using electronic health records},
  year = {2017},
  journal = {Popul Health Metr},
  volume = {15},
  number = {1},
  pages = {18},
  issn = {1478-7954},
  doi = {10.1186/s12963-017-0136-2},
}