Analysis of "task-positive" and "task-negative" functional networks during the performance of the Symbol Digit Modalities Test in patients at presentation with clinically isolated syndrome suggestive of multiple sclerosis.
Forn C, Rocca MA, Boscá I, Casanova B, Sanjuan A, Filippi M
Exp Brain Res. 2013 Jan 4. Epub 2013 Jan 04. PMID: 23288324.Abstract