| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
|---|---|
| OET | oral endotracheal tube; oral esophageal tube |
| OHI | Occupational Health Institute; operative hypertension indicator; oral hygiene index; Oral Hygiene In... |
| Ca | 1) Carcinoma 2) Cancer; 암 3) Calcium |
| CPPD | Calcium Pyro-Phosphate Dihydrate |