Assertion: blepharospasm's cause | /r/HasProperty | identified
Facets:
value: so far
type: OTHER
Source sentences:
text: Some causes of blepharospasm have been identified; however, the causes of many cases of blepharospasm remain unknown.
text: Some causes of blepharospasm have been identified; however, the causes of many cases of blepharospasm remain unknown.
text: Only a few direct causes of blepharospasm have been identified so far, but most instances of the condition don't have any clear or attributable cause.
text: No cause can be identified.
text: Causes of primary dystonia In primary dystonia, no underlying cause is identified.