Chronic fatigue syndrome. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/special-subjects/chronic-fatigue-syndrome/chronic-fatigue-syndrome. Updated July 2018. Accessed February 8, 2019.
Last reviewed December 2018 by EBSCO Medical Review Board
Marcin Chwistek, MD
Last Updated: 2/8/2019
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