| RES | Reticulo-Endothelial System |
|---|---|
| ELA | elastase; elastomer-lubricating agent; endotoxin-like activity |
| ET | educational therapy; effective temperature; ejection time; embryo transfer; endothelin; endotoxin; e... |
| EU | Ehrlich unit; elementary unit; emergency unit; endotoxin unit; entropy unit; enzyme unit; esterase u... |
| ol | res oleoresin |