Psychometric properties of the CDC Symptom Inventory for assessment of chronic fatigue syndrome
Population Health Metrics (2005) - Comments
pubmed: 16042777  doi: 10.1186/1478-7954-3-8  issn: 1478-7954 

Dieter Wagner, Rosane Nisenbaum, Christine Heim, James F Jones, Elizabeth R Unger, William C Reeves