Derin Çiçek E, Murat Arslan H. The efficacy of external valvuloplasty with silicone stents (Venocuff™) in the management of focal valvular incompetence as assessed by Doppler ultrasound. Turk J Vasc Surg 2020; 29(3): 152-158. http://dx.doi.org/10.9739/tjvs.2020.660