There are multiple definitions:

1. interaural time delay/difference(English)

   • binaural auditory cue for localizing sounds in space
   • BIC, IID
   • Auditory system, Difference based metric
   • https://doi.org…res.2006.03.095

2. impedance threshold device(English)

   • CPR, ITP, ITPR, STD
   • Impedance/bioimpedance
   • https://doi.org…IONAHA.105.5415

3. internal tandem duplication(English)

   • AML, Flt3, ECOG, FLT3-ITD
   • Oncology, Chemotherapy
   • https://doi.org…2045(19)30150-0
   • https://doi.org…2650(22)01212-5

4. intraoperative technique difficulty(English)

   • refers to treatment for poor-grade aneurysmal subarachnoid hemorrhage
   • aSAH, SAH
   • Surgery, Neuropathy, Vascular disease
   • https://doi.org…neu.2018.03.219