e/Controversies related to chronic fatigue syndrome

Information
has gloss	eng: Chronic fatigue syndrome (CFS) is an illness with a long history of controversies. For years, many professionals within the medical community did not recognize CFS as a real condition, nor was there agreement on its prevalence. There has been much disagreement over the pathophysiology of chronic fatigue syndrome, how it should be diagnosed, and how to treat it.
lexicalization	eng: Controversies related to chronic fatigue syndrome
instance of	c/Ailments of unknown etiology