THE STUDY, CLINICAL IMPLICATIONS AND SOLUTIONS FOR FAILED VARICOSE VEIN SURGERY WITH RECURRENT VENOUS ULCERS: AN ANALYSIS OF 12 PATIENTS WITH DUPLEX SCAN CORRELATED WITH INTRA OPERATIVE FINDINGS AT SECOND SURGERY Journal title: Journal of Evolution of Medical and Dental Sciences Authors: Gopinath Venkatarao, Nanda Lahoti Subject(s):