There are multiple definitions:

1. chronic renal insufficiency(English)

   • ESRD, CRIC
   • Nephrology

2. Committee for Research Integrity(English)

   • Ethics, Organizations (research)

3. continuous rate infusion(English)

4. chronotropic responsiveness index(English)

   • CPETT, HRR, MPHR, RER
   • Cardiology

5. cardiorespiratory interaction(English)

   • CRC, CRS, HR, PRQ, RR
   • Cardiology, Respiratory system
   • https://doi.org…phys.2019.00371

6. Credible Interval(English)

   • also denoted as CrI
   • CrI
   • Pharmacology / pharmaceutics, Therapeutic approaches
   • https://doi.org…rev.2016.10.005

7. cranial rhythmic impulse(English)

   • HF, LF, ANS, BRS, CFS, CVH, HRV, MFHA, NTS, OCF, OCMM, OMT, PPG, PRM, retR, SBV, THW
   • Electrophysiology, Brain (dys)function, Reflex, Nervous activity - (para)sympathetic, Variability / oscillation
   • http://dx.doi.o…9071(23)00076-X
   • https://doi.org…al.pone.0317300