慢性疲劳综合征的诊断标准*

* Diagnostic criteria proposed by the Institute of Medicine (now the Health and Medicine Division of The National Academies of Science, Engineering, and Medicine) in February 2015.

†应评估症状的频率和严重程度。如果患者至少有一半时间没有出现中度、重度或重度以上的症状，则应质疑肌痛性脑脊髓炎/慢性疲劳综合症（ME/CFS）的诊断。