Editorial

Minden SL , Frankel D , Hadden L , Perloffp J , Srinath KP , Hoaglin DC. The Sonya Slifka Longitudinal Multiple Sclerosis Study: methods and sample characteristics . Mult Scler 2006; 12: 24-38 .

Smith MM , Arnett PA. Factors related to employment status changes in individuals with multiple sclerosis . Mult Scler 2005; 11: 602-609 .

Edgley K , Sullivan M , Dehoux E. A survey of multiple sclerosis: II determinants of employment status . Can J Rehabil 1991; 4: 127-132 .

Krupp LB , Elkins LE. Fatigue and declines in cognitive functioning in multiple sclerosis . Neurology 2000; 55: 934-939 .

Schwid SR , Thornton CA , Pandya S et al. Quantitative assessment of motor fatigue and strength in MS . Neurology 1999; 53: 743-750 .

Christodoulou C. The assessment and measurement of fatigue. In DeLuca J , ed. Fatigue as a window to the brain. MIT Press , 2005: 19-35.

Schwartz CE , Coulthard-Morris L , Zeng Q. Psychosocial correlates of fatigue in multiple sclerosis . Arch Phys Med Rehabil 1996; 77: 165-170 .

Krupp LB , Alvarez LA , LaRocca NG , Scheinberg LC. Fatigue in multiple sclerosis . Arch Neurol 1988; 45: 435-437 .

Stanton BR , Barnes F , Sibler E. Sleep and fatigue in multiple sclerosis . Mult Scler 2006; 12: 481-486 .

Téllez N , Comabella M , Juliá E , Río J , Tintoré M , Brieva L et al. Fatigue in progressive multiple sclerosis is associated with low levels of dehydroepiandrosterone . Mult Scler 2006; 12: 487-494 .

Strober LB , Arnett PA. An examination of four models predicting fatigue in multiple sclerosis . Arch Clin Neuropsychol 2005; 20: 631-646 .

Attarian HP , Brown KM , Duntley SP , Carter JD , Cross AH. The relationship of sleep disturbances and fatigue in multiple sclerosis . Arch Neurol 2004; 61: 525-528 .

Then Bergh F , Kumpfel T , Trenkwalder C , Rupprecht R , Holsboer F. Dysregulation of the hypothalamo-pituitary-adrenal axis is related to the clinical course of MS . Neurology 1999; 53: 772-777 .

Gottschalk M , Kumpfel T , Flachenecker P et al. Fatigue and regulation of the hypothalamo-pituitary - adrenal axis in multiple sclerosis . Arch Neurol 2005; 62: 277-280 .

Marrie RA , Fisher E , Miller DM , Lee JC , Rudick RA. Association of fatigue and brain atrophy in multiple sclerosis . J Neurol Sci 2005; 228: 161-166 .

Tartaglia MC , Narayanan S , Francis SJ et al. The relationship between diffuse axonal damage and fatigue in multiple sclerosis . Arch Neurol 2004; 61: 201-207 .

Roelcke U , Kappos L , Lechner-Scott J et al. Reduced glucose metabolism in the frontal cortex and basal ganglia of multiple sclerosis patients with fatigue: a 18F-fluorodeoxyglucose positron emission tomography study . Neurology 1997; 48: 1566-1571 .