PT - JOURNAL ARTICLE AU - JOHANNES J. RASKER TI - The Enigma of Fatigue AID - 10.3899/jrheum.091036 DP - 2009 Dec 01 TA - The Journal of Rheumatology PG - 2630--2632 VI - 36 IP - 12 4099 - http://www.jrheum.org/content/36/12/2630.short 4100 - http://www.jrheum.org/content/36/12/2630.full SO - J Rheumatol2009 Dec 01; 36