9Safar H,Shawa N,Al-Ali J,et al.Is there a need for Doppler vascular examination for the diagnosis of varicose vein A prospective study[J].Med Princ Praet,2004,3(1):43-46.
10Lurie F, Cretan D, Eklof B, et al. Prospective randomised study of endovenous radiofrequency obliteration (closure) versus ligation and vein stripping ( EVOLVES ) : two-year follow-up [J]. Eur Vascular Endovasc Surg,2005,29( 1 ) :67 -73.