| USAMRIID | United States Army Medical Research Institute for Infectious Diseases |
|---|---|
| HCI | Health Commons Institute; human collagenase inhibitor |
| HEI | Health Effects Institute; high-energy intermediate; homogenous enzyme immunoassay; human embryonic i... |
| IASHS | Institute for Advanced Study in Human Sexuality |
| ERF | Education and Research Foundation; external rotation in flexion; Eye Research Foundation |