| SMON | subacute myeloopticoneuropathy |
|---|---|
| SNE | sinus node electrogram; subacute necrotizing encephalomyelography |
| SSN | severely subnormal; subacute sensory neuropathy; suprasternal notch |
| SSP | Sanarelli-Shwartzman phenomenon; subacute sclerosing panencephalitis; slice sensitivity profile; sub... |
| SSPE | subacute sclerosing panencephalitis |
| DE | discirculatory encephalopathy |
|---|---|
| MELAS | myopathy, encephalopathy, lactic acidosis and stroke like episodes |