| NFLD | nerve fiber layer defect |
|---|---|
| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |
| NTD | neural tube defect; nitroblue tetrazolium dye; noise tone difference; 5'-nucleotidase |
| PAFD | percutaneous abscess and fluid drainage; pulmonary artery filling defect |
| PAGOD | pulmonary hypoplasia-hypoplasia of pulmonary artery-agonadism-omphalocele/diaphragmatic defect-dextr... |