| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| AMD | acid maltase deficiency; acromandibular dysplasia; actinomycin D; adrenomyelodystrophy; age-related ... |
| MDOPA, mdopa | methyldopa |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
| OET | oral endotracheal tube; oral esophageal tube |