| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
|---|---|
| NAD | neutrophil actin dysfunction; new antigenic determinant; nicotinamide adenine dinucleotide; nicotini... |
| NAZC | neutrophil azurocidin |
| NBI | neutrophil bactericidal index; no bone injury; non-battle injury |
| NCA | National Certification Agency; National Council on Aging; National Council on Alcoholism; neurocircu... |