Assertion: hemifacial spasm | /r/HasProperty | rare
Facets:
Source sentences:
text: Hemifacial spasm is rare, affecting only 8 people in 100,000 in the US.
text: Hemifacial spasm is a rare condition.
text: Hemifacial spasm (HFS) is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions (spasms) on one side (hemi-) of the face (-facial).