There are multiple definitions:

1. carcino-embryonic antigen(English)

   • Biomarker

2. cost effectiveness analysis(English)

   • RCT, RI
   • Quality and outcomes, Clinical trials
   • https://doi.org…OMES.123.010086
   • https://doi.org…ppcrj.2022.82.5

3. carotid endarterectomy(English)

   • standard of care for patients with symptomatic carotid artery stenosis
   • CAS, eCEA, TCAR, CoW
   • Hemodynamics, Therapeutic approaches, Surgery
   • https://doi.org…jnl-2019-316164

4. central [nuclei of] amygdala(English)

   • stress-related brain region; also denoted as CeA
   • CRH, FBGRKO, FST, GR, HPA, MEA, MR, PVN
   • Anatomy, Brain (dys)function, Stress (test), Neurons
   • https://doi.org…68.2000.00958.x