| BPV | benign paroxysmal vertigo; benign positional vertigo; bioprosthetic valve; bovine papilloma virus |
|---|---|
| END | early neonatal death; endocrinology; endorphin; endothelin |
| NALD | neonatal adrenoleukodystrophy |
| NAS | nasal; National Academy of Sciences; National Association of Sanitarians; neonatal airleak syndrome;... |
| NAT | N-acetyltransferase; natal; neonatal alloimmune thrombocytopenia; no action taken; nonaccidental tra... |