| 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... |
| DO | Dissolved Oxygen; 용존산소 ; 수중 DO는 오염 판정의 기본이 되는 지표 1. 온도 - - DO - &n... |
| COD | cause of death; cerebro-ocular dysplasia; chemical oxygen demand; codeine; condition on discharge |