Guideline No.	GRADE of recommendation	Level of evidence
12.1	1	B
We recommend liquid or foam sclerotherapy for telangiectasia, reticular veins, and varicose veins.
Guideline No.	GRADE of recommendation	Level of evidence
12.2	1	B
For treatment of the incompetent saphenous vein, we recommend endovenous thermal ablation over chemical ablation with foam.