| 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... |
| GIH | Growth hormone release Inhibiting Hormone = Somatostatin |
| GnRH | Gonadotropin Releasing Hormone [HP 1898, 2034] = LHRH = Go... |