There are multiple definitions:

1. restricted cubic spline(English)

   • a way of testing the hypothesis that the relationship is not linear or summarizing a relationship that is too nonlinear to be usefully summarized by a linear relationship
   • AIC, PTH
   • Statistics, Thyroid and parathyroid, Endocrinology, Model(ing), Prognosis
   • https://onlinel…1118032619.app3
   • https://doi.org…17/jns.2022.110
   • https://doi.org…epi.2014.11.022

2. Residential Classification Scale(English)

   • ACFI, CAPE
   • Care of elderly, Scoring systems/scales
   • https://doi.org…1111/ajag.12036

3. refractory cardiogenic shock(English)

   • the ideal Shock Team comprises a heart failure cardiologist, a heart failure cardiothoracic surgeon, an interventional cardiologist, and a Cardiovascular Intensive Care Unit attending physician. Also as rCS
   • CS, MCS
   • Cardiology, Electrophysiology, Therapeutic approaches
   • https://doi.org…81.2021.1925562

4. root canal sealer(English)

   • a calcium silicate-based sealer
   • GP, PBS, POBS
   • Dentistry, Therapeutic approaches
   • https://doi.org…/eej.2024.96977
   • https://doi.org…0266-018-0392-z

5. retrograde conduction slowing(English)

   • CTS, CV, RAA
   • Electrophysiology, Neuropathy
   • https://doi.org…nph.2008.09.014