| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| HDZ | hydralazine |
| HHR | hydralazine, hydrochlorothiazide, and reserpine |
| HYD | hydralazine; hydration, hydrated; hydrocortisone; hydroxyurea |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |