Assertion: endovenous ablation | /r/CapableOf | use radiofrequency
Facets:
value: to close them
type: PURPOSE
Source sentences:
text: In particular, endovenous ablation uses ultrasound to find the problematic veins, and then uses radiofrequency or laser energy to close them off.
text: It uses radiofrequency or laser energy to cauterize (burn) and close the abnormal veins that lead to varicose veins.