RT Journal Article SR Electronic T1 The relation between daytime sleepiness, fatigue, and reduced motivation in patients with adult onset myotonic dystrophy JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 138 OP 139 DO 10.1136/jnnp.74.1.138 VO 74 IS 1 A1 S van der Werf A1 J Kalkman A1 G Bleijenberg A1 B van Engelen A1 M Schillings A1 M Zwarts YR 2003 UL http://jnnp.bmj.com/content/74/1/138.abstract AB