title: [Changes on definition and diagnostic criteria of the chronic fatigue syndrome].
authors.affiliation: gzqinyou@163.com
authors.forename: You
authors.initials: Y
authors.lastname: Qin
authors.forename: Feng-Shun
authors.initials: FS
authors.lastname: Pang
authors.forename: Bei-Yuan
authors.initials: BY
authors.lastname: Cai
mesh_terms: D019937:Diagnostic Techniques and Procedures / Q000592:standards*; D015673:Fatigue Syndrome, Chronic / Q000175:diagnosis*; D006801:Humans; D012015:Reference Standards