@article{naik1991-8334975f,
  author  = {Naik, Prakash},
  title   = {{How old are the elderly?}},
  journal = {The British Journal of Psychiatry},
  year    = {1991},
  doi     = {10.1192/s0007125000108700},
  url     = {https://doi.org/10.1192/s0007125000108700}
}