Assertion: fibril's structure | /r/CapableOf | call fibril
Facets:
Source sentences:
text: The clumping ultimately leads to the formation of ribbon-like structures called fibrils, and because fibril formation has been linked to a number of human diseases, it was long assumed that fibrils themselves were toxic.
text: They associate with each other to form arrays of aligned fibrils that make up a larger structure called the fiber.