| REA | radiation emergency area; radioenzymatic assay; renal anastomosis; right ear advantage |
|---|---|
| REAT | radiological emergency assistance team |
| SAEM | Society for Academic Emergency Medicine |
| SER | sebum excretion rate; sensitizer enhancement ratio; sensory evoked response; service; smooth endopla... |
| STEM | scanning transmission electron microscope; Society of Teachers of Emergency Medicine |