| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
|---|---|
| ECA | electrical control activity; electrocardioanalyzer; endothelial cytotoxic activity; enterobacterial ... |
| EIT | electrical impedance tomography; erythroid iron turnover |
| ERA | electrical response activity; electroencephalic response audiometry; Electroshock Research Associati... |
| GEA | gastric electrical activity |