De Maeseneer, M., and A. Cavezzi. “Etiology and Pathophysiology of Varicose Vein Recurrence at the Saphenofemoral or Saphenopopliteal Junction: An Update”. Veins and Lymphatics, vol. 1, no. 1, June 2012, p. e4, doi:10.4081/vl.2012.e4.