| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
|---|---|
| UK | Uro-Kinase |
| EGF-URO | epidermal growth factor, urogastrone |
| URO | urology; uroporphyrin; uroporphyrinogen; utilization review organization |
| URO-GEN | urogenital |