| ELIA | enzyme-linked immunoassay |
|---|---|
| EMIT | enzyme multiplied immunoassay technique |
| FPIA | fluorescence polarization immunoassay |
| HEI | Health Effects Institute; high-energy intermediate; homogenous enzyme immunoassay; human embryonic i... |
| HII | Health Industries Institute; Health Insurance Institute; hemagglutination inhibitor immunoassay |