There are multiple definitions:

1. bridge to transplant(English)

   • , LVAD, BTC, BTR, MCS, TAH, VAD, BTD, HVAD, DT, IABP
   • Transplantation, Cardiology

2. butanol threshold testing(English)

   • COT, CRS, MOT, OD, PIOD, PVOD, TDI, URTI
   • Olfactory system
   • https://doi.org….1002/alr.22624