RT Journal Article SR Electronic T1 Cognitive behavior therapy improved function in the chronic fatigue syndrome JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 153 OP 153 DO 10.1136/ebm.1996.1.153 VO 1 IS 5 YR 1996 UL http://ebm.bmj.com/content/1/5/153.abstract AB