| AC-DC, ac/dc | alternating current or direct current |
|---|---|
| CC | calcaneal-cuboid; calcium cyclamate; cardiac catheterization; cardiac contusion; cardiac cycle; card... |
| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |
| OB | 1) Occult Blood 2) OBstetrics; 산과학 |
| APGO | Association of Professors of Gynecology and Obstetrics |