#chorea  any of several degenerative nervous disorders characterized by spasmodic movements of the body and limbs
  supertype:  nervous_disorder  degenerative_disorder
  subtype:  orthochorea  a form of chorea in which spasms occur mainly when the patient is erect
  subtype:  Sydenham's_chorea__Saint_Vitus_dance__St._Vitus_dance  chorea occurring chiefly in children and associated with rheumatic fever
  subtype:  tarantism  a nervous disorder characterized by an uncontrollable impulse to dance; popularly attributed to bite of the S European tarantula or wolf spider
  subtype:  Huntington's_chorea__Huntington's_disease  hereditary; develops in adulthood and ends in dementia

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