| ESPA | electrical stimulation-produced analgesia |
|---|---|
| ETS | educational testing service; electrical transcranial stimulation |
| FS | factor of safety; Fanconi syndrome; Felty syndrome; fibromyalgia syndrome; field stimulation; Fisher... |
| HRS | Hamilton Rating Scale; Hamman-Rich syndrome; health and rehabilitative services; hepatorenal syndrom... |
| HVGS | high-voltage galvanic stimulation |