Medicine
- Carotid Endarterectomy
- CAT scan
- Cataract extraction
- cautery
- Cell therapy
- charnel house
- Chelation therapy
- Chest Physical Therapy
- Chest X Ray
- Childrens Apperception Test
- chiropody
- chiropractic
- Cholecystectomy
- chorionic villus sampling
- clinic
- clinical medicine
- Clinical trials
- Cochlear implants
- Cognitive development
- Cognitive-behavioral therapy