Mazari, F., Abdul Rahman, H., Khan, J., McCollum, P., Gulati, S., Mehta, T., & Chetter, I. Cost utility analysis of a randomised control trial of percutaneous transluminal angioplasty (PTA), supervised exercise programme (SEP) and combined treatment (PTA plus SEP) for patients with intermittent claudication (IC) due to femoropopliteal disease