There are multiple definitions:

1. chemokine C-C motif ligand(English)

2. cardiac catheter laboratory(English)

   • FFR, PCI, CBF
   • Coronary circulation, Hemodynamics
   • https://doi.org…161-022-00091-z

3. chiasmal compression lesion(English)

   • GCL, mGCL, mRNFL, pRNFL, RNFL
   • Ophthalmology
   • https://doi.org…55/2022/5625803

4. cholangiocyte cell line(English)

   • PCK, PCK-CCL, ARPKD, NRC
   • Biliary tract
   • https://doi.org…binvest.3700448