| NNWI | Neonatal Narcotic Withdrawal Index |
|---|---|
| NP | nasopharynx, nasopharyngeal; near point; necrotizing pancreatitis; neonatal-perinatal; neuritic plag... |
| NPII | Neonatal Pulmonary Insufficiency Index |
| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |
| NSHPT | neonatal severe hyperparathyroidism |