Letter to the Editor, Re: Nylaende M, Abdelnoor M, Stranden E, Morken B, Sandbaek G, Risum O, et al. The Oslo Balloon Angioplasty versus Conservative Treatment Study (OBACT)-The 2-years Results of a Single Centre, Prospective, Randomised Study in Patients with Intermittent Claudication. Eur J Vasc Endovasc Surg. 2007;33:3–12