| NTV | nerve tissue vaccine |
|---|---|
| OMN | oculomotor nerve |
| ON | occipitonuchal; office nurse; onlay; optic nerve; orthopedic nurse; osteonecrosis; osteonectin; over... |
| ONG | optic nerve glioma |
| PNB | p-nitrobiphenyl; perineal needle biopsy; peripheral nerve block; premature nodal beat |