There are multiple definitions:

1. postinfectious olfactory dysfunction(English)

   • most common etiology of olfactory dysfunction, and olfactory training is an accepted treatment modality
   • BTT, COT, CRS, MOT, OD, OT, PVOD, TDI, URTI
   • Olfactory system
   • https://doi.org…1002/lary.24340

2. partial iodide organification defect(English)

   • defined as a wash-out of 10–90%. Test is considered positive if <10% of activity is discharged after ClO4− administration. A discharge > 90% is consistent with total organification defect
   • TSH, TIOD
   • Endocrinology, Thyroid and parathyroid
   • https://doi.org…m.2018.23.4.169