Clinical effectiveness and cost-effectiveness of foam sclerotherapy, endovenous laser ablation and surgery for varicose veins: results from the Comparison of LAser, Surgery and foa... oleh Julie Brittenden, Seonaidh C Cotton, Andrew Elders, Emma Tassie, Graham Scotland, Craig R Ramsay, John Norrie, Jennifer Burr, Jill Francis, Samantha Wileman, Bruce Campbell, Paul Bachoo, Ian Chetter, Michael Gough, Jonothan Earnshaw, Tim Lees, Julian Scott, Sara A Baker, Graeme MacLennan, Maria Prior, Denise Bolsover, Marion K Campbell