@misc{indiciae8c8a4fa348ea,
  title = {Strategy of thyroid-function testing, a comparative study using TT4, FT4I, various FT4 and IRMA-TSH kits.},
  author = {E P Krenning and R Docter and H van Toor and A C Poppelaars and P T Postema and T J Visser and G Hennemann},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3559057/},
  note = {Source identifier: 3559057}
}