There are multiple definitions:

1. common toxicity criteria(English)

   • now referred to as CTCAE
   • NCI, CTCAE
   • Toxicology, Standards, Guidelines

2. computed tomography colonography(English)

   • Gastroenterology, Medical imaging

3. circulating tumor cell(English)

   • CFDNA, PMN, CDx
   • Oncology
   • https://doi.org…mmu.2022.958360
   • https://doi.org…cer.2022.03.013

4. clinical trial center(English)

   • Clinical trials, Organizations (research)

5. Care and Treatment Center(English)

   • HBV, HCV, HIV
   • Health care
   • https://doi.org…1471-2458-7-338