title: Muscle pain syndromes--Part I.
mesh_terms: D000293:Adolescent; D000328:Adult; D005356:Fibromyalgia / Q000266:history; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008875:Middle Aged; D009132:Muscles; D010146:Pain; D013577:Syndrome; D006113:United Kingdom; D014481:United States