Tassie, E., Scotland, G., Brittenden, J., Cotton, S. C., Elders, A., Campbell, M. K., Campbell, B., Gough, M., Burr, J. M., Ramsay, C. R., on behalf of the CLASS study team,, "Cost-effectiveness of ultrasound-guided foam sclerotherapy, endovenous laser ablation or surgery as treatment for primary varicose veins from the randomized CLASS trial: Cost-effectiveness of primary varicose vein treatments", , 2014