| ESI | elastase-specific inhibitor; enzyme substrate inhibitor; epidural steroid injection |
|---|---|
| EU | Ehrlich unit; elementary unit; emergency unit; endotoxin unit; entropy unit; enzyme unit; esterase u... |
| G-6-PDA | glucose-6-phosphate dehydrogenase enzyme variant A |
| HE | half-scan with extrapolation; hard exudate; hektoen enteric [agar]; hemagglutinating encephalomyelit... |
| HEI | Health Effects Institute; high-energy intermediate; homogenous enzyme immunoassay; human embryonic i... |