| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| CPA | Chest Postero-Anterior |
| CPA tumor | Cerebello-Pontine Angle(소뇌교각부) tumor |
| CPA | Canadian Physiotherapy Association; Canadian Psychiatric Association; carboxypeptidase A; cardiopulm... |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |