| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| EIA | electroimmunoassay; enzyme immunoassay; enzyme-linked immunosorbent assay; equine infectious anemia;... |
| PACE | Pacing and Clinical Electrophysiology; paired basic amino acid cleaving enzyme; personalized aerobic... |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
| OET | oral endotracheal tube; oral esophageal tube |