@misc{indiciae55489ff13258,
  title = {Progressive decrease in serum triiodothyronine concentrations with human aging: radioimmunoassay following extraction of serum.},
  author = {H A Rubenstein and V P Butler and S C Werner},
  year = {1973},
  doi = {10.1210/jcem-37-2-247},
  url = {https://pubmed.ncbi.nlm.nih.gov/4198256/},
  note = {Source identifier: 4198256}
}