| REFI | regional ejection fraction image |
|---|---|
| SEM | sample evaluation method; scanning electron microscopy; secondary enrichment medium; standard error ... |
| SEP | self-evaluation process; sensory-evoked potential; septum; somatosensory evoked potential; sperm ent... |
| SER | sebum excretion rate; sensitizer enhancement ratio; sensory evoked response; service; smooth endopla... |
| SET | surrogate embryo transfer; systolic ejection time |