- CK2 inhibitor CX-4945
- cladribine
- Clafen
- Claforan
- Claravis
- clarithromycin
- Clark level I melanoma
- Clark level II melanoma
- Clark level III melanoma
- Clark level IV melanoma
- Clark level V melanoma
- Clark levels
- Class 1 PI3K kinase family inhibitor XL147
- class III receptor tyrosine kinase inhibitor AC220
- classical Hodgkin lymphoma
- claudiximab
- Claus model
- clavicle
- clear cell
- clear cell adenocarcinoma
- clear cell carcinoma
- clear cell sarcoma of soft tissue
- clear cell sarcoma of the kidney
- cleaved
- clergy
- clevidipine butyrate injectable emulsion
- Cleviprex
- clindamycin / hydrocortisone lotion
- clinical
- clinical breast exam
- clinical practice guidelines
- clinical researcher
- clinical resistance
- clinical series
- clinical stage
- clinical staging
- clinical study
- clinical trial
- clinician
- Clino-San vaginal lubricant
- Clinoril
- clioquinol
- CLL
- CLL/SLL
- clobetasol propionate
- clodronate
- clodronate disodium
- clofarabine
- Clofarex
- clofibrate