| CCF | cancer coagulation factor; cardiolipin complement fixation; carotid-cavernous fistula; centrifuged c... |
|---|---|
| CFS | cancer family syndrome; Chiari-Frommel syndrome; chronic fatigue syndrome; craniofacial stenosis; cr... |
| FNF | false-negative fraction; femoral neck fracture |
| Fr | fracture; francium; franklin [unit charge]; French; frequency or frequent |
| frac | fracture |