Revision of the CEAP classification for chronic venous disorders: Consensus statement

Bo Eklöf, Robert B. Rutherford, John J. Bergan, Patrick H. Carpentier, Peter Gloviczki, Robert L. Kistner, Mark H. Meissner, Gregory L. Moneta, Kenneth Myers, Frank T. Padberg, Michel Perrin, C. Vaughan Ruckley, Philip Coleridge Smith, Thomas W. Wakefield