| NHAAP | National Heart Attack Alert Program |
|---|---|
| NIMP | National Intern Matching Program |
| NIRMP | National Intern and Resident Matching Program |
| NPA-NIHHDP | National Pituitary Agency-National Institutes of Health Hormone Distribution Program |
| NTP | National Toxicology Program; nitroprusside; normal temperature and pressure; nucleoside triphosphate... |