RT Journal Article SR Electronic T1 Review: behavioural interventions show the most promise for chronic fatigue syndrome JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 52 OP 52 DO 10.1136/ebm.7.2.52 VO 7 IS 2 YR 2002 UL http://ebm.bmj.com/content/7/2/52.abstract AB