Cost-effectiveness analysis of a randomized clinical trial of early versus deferred endovenous ablation of superficial venous reflux in patients with venous ulceration. - Epstein DM; Gohel MS; Heatley F; Liu X; Bradbury A; Bulbulia R; Cullum N; Nyamekye I; Poskitt KR; Renton S; Warwick J; Davies AH (The British journal of surgery, 2019)