| OND | Ophthalmic Nursing Diploma; orbitonasal dislocation; other neurological disorders |
|---|---|
| ONP | operating nursing procedure; orthonitrophenyl |
| ONS | Oncology Nursing Society |
| PCN | penicillin; primary care nursing |
| PHN | paroxysmal noctural hemoglobinuria; passive Heymann nephritis; postherpetic neuralgia; public health... |