e/Pathophysiology of chronic fatigue syndrome

Information
has gloss	eng: The cause and development of chronic fatigue syndrome (CFS) are unknown, but may involve multiple organ and body systems, including neurological factors, psychological and psychosocial factors or influences, infections, immunological factors, endocrinal factors, genetic factors as well as several other less-common theories. No clinically-meaningful risk factor has been identified.
lexicalization	eng: Pathophysiology of chronic fatigue syndrome
instance of	c/Ailments of unknown etiology