| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
|---|---|
| NMPCA | nonmetric principal component analysis |
| PAA | partial agonist activity; phenylacetic acid; phosphonoacetic acid; physical abilities analysis; plas... |
| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
| RIAS | Roter Interactional Analysis System |