| EMT | emergency medical tag; emergency medical team; emergency medical technician; emergency medical treat... |
|---|---|
| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
| ECC | electrocorticogram, electrocorticography; electronic claim capture; embryonal cell carcinoma; emerge... |
| ECR | effectiveness-cost ratio; electrocardiographic response; emergency care research; emergency chemical... |
| EMA | electronic microanalyzer; emergency medical assistance, emergency medical assistant; endothelial mon... |