| COLD | A cold agglutinin titer |
|---|---|
| CSF | cancer family syndrome; cerebrospinal fluid; cold stability factor; colony-stimulating factor; coron... |
| 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... |