@misc{indiciaef201706de910,
  title = {Evidence for thymic function in the elderly.},
  author = {D C Douek and R A Koup},
  year = {2000},
  doi = {10.1016/s0264-410x(99)00499-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/10689141/},
  note = {Source identifier: 10689141}
}