| HEEP | health effects of environmental pollutants |
|---|---|
| HEI | Health Effects Institute; high-energy intermediate; homogenous enzyme immunoassay; human embryonic i... |
| HEIR | health effects of ionizing radiation; high-energy ionizing radiation |
| Q-TWIST | quality-adjusted time without symptoms of disease and subjective toxic effects of treatment |
| RERF | Radiation Effects Research Foundation |