http://link.springer.com/article/10.1007/s40279-015-0303-1 Thought there was a chance this might be interesting. Don't have the full text myself. They do reference a few CFS papers: Edmonds M, McGuire H, Price J. Exercise therapy for chronic fatigue syndrome. Cochrane Database Syst Rev. 2004;(3):CD003200. Edmonds M, McGuire H, Price JR. Exercise therapy for chronic fatigue syndrome. Cochrane Libr. 2013;8:1–19. Castell BD, Kazantzis N, Moss-Morris RE. Cognitive behavioral therapy and graded exercise for chronic fatigue syndrome: a meta-analysis. Clin Psychol Sci Pract. 2011;18:311–24 Cho HJ, Hotopf M, Wessely S. The placebo response in the treatment of chronic fatigue syndrome: a systematic review and meta-analysis. Psychosom Med. 2005;67(2):301–13.