English Jostel's TSH index Cited by user 212.23.155.190 on 07 Mar 2022 Jostel's TSH index (TSHI or JTI), also referred to as Jostel's thyrotropin index or Thyroid Function index (TFI), is a method for estimating the thyrotropic (i.e.
English Thyroid's secretory capacity Cited by user 212.23.155.190 on 07 Mar 2022 In vivo, GT can also be estimated from equilibrium levels of TSH and T4 or free T4. In this case it is calculated with.