title: History and etiology of myofascial pain-dysfunction syndrome.
mesh_terms: D005221:Fatigue / Q000503:physiopathology; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans; D008410:Masticatory Muscles / Q000294:innervation / Q000503:physiopathology; D009119:Muscle Contraction; D009411:Nerve Endings / Q000502:physiology; D011434:Proprioception; D013035:Spasm / Q000503:physiopathology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000209:etiology* / Q000266:history / Q000503:physiopathology / Q000523:psychology / Q000628:therapy