| Abbreviations | Meaning |
 | ANGFA | Antinerve Growth Factor Antibody |
| NGF | Nerve Growth Factor |
| ON | Occipitonuchal; Office Nurse; Olfactory Nucleus; Onlay; Optic Nerve; Orthopedic Nurse; Osteonecrosis; Osteonectin; Overnight |
| ANRI | Acute Nerve Root Irritation |
| TENS | Toxic Epidermal Necrolysis Syndrome; Transcutaneous Electrical Nerve Stimulation |
| RNGF | Rhodamine-nerve Growth Factor [conjugate] |
| LVN | Lateral Ventricular Nerve |
| NAPP | Nerve Agent Pyridostigmine Pretreatment |
| SLN | Sentinel Lymph Node; Sublentiform Nucleus; Superior Laryngeal Nerve; SYBYL Line Notation |
| UN | Ulnar Nerve; Undernourished; Unilateral Neglect; Updraft Nebulizer; Urea Nitrogen; Urinary Nitrogen |
| NGSA | Nerve Growth Stimulating Activity |
| CN II | Second Cranial Nerve [optic] |
| CNI | Center Of Nuclear Image; Chronic Nerve Irritation; Community Nutrition Institute |
| NR | Nerve Root |
| CII | Second Cranial Nerve |
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