PT - JOURNAL ARTICLE AU - Lewis, G AU - Wessely, S TI - The epidemiology of fatigue: more questions than answers. AID - 10.1136/jech.46.2.92 DP - 1992 Apr 01 TA - Journal of Epidemiology and Community Health PG - 92--97 VI - 46 IP - 2 4099 - http://jech.bmj.com/content/46/2/92.short 4100 - http://jech.bmj.com/content/46/2/92.full SO - J Epidemiol Community Health1992 Apr 01; 46