Assertion: cystic artery's variation | /r/HasProperty | common
Facets:
value: very
type: DEGREE
Source sentences:
text: Michels  quoted that, according to Lahey, “cholecystectomy is a dangerous operation unless one realizes that variations are very common.
text: Variations of the cystic artery origin, length, its course through the Calot`s triangle and its relation to the cystic duct are common.
text: Anatomic variations of RHA are common.