| ECA | electrical control activity; electrocardioanalyzer; endothelial cytotoxic activity; enterobacterial ... |
|---|---|
| EY | egg yolk; epidemiological year |
| IEA | immediate early antigen; immunoelectroadsorption; immunoelectrophoretic analysis; infectious equine ... |
| invest | investigation |
| PIOPED | Prospective Investigation of Pulmonary Embolism Diagnosis [data base] |