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Sam Donaldson, Nancy Snyderman, Paul Cheney, David Bell, Elaine DeFreitas, Hillary Johnson, PWC's, Paul Pollard, Mrs. Dailor, Philip Lee (1996-03-27). Sick & Tired (Television). ABC News.
Jason L.; et al. (May 2006). "A Pediatric Case Definition for Myalgic Encephalomyelitis and Chronic Fatigue Syndrome". Journal of Chronic Fatigue Syndrome. 13 (2/3): 1–44. CiteSeerX10.1.1.516.4887. doi:10.1300/J092v13n02_01.