Yiğit S, Yamak B, Yamak D, Yakut Y, Usgu S. Impact of exercise training on fatigue, severity of nocturnal leg cramps, and sleep quality in chronic venous insufficiency. Turk J Vasc Surg 2021; 30(2): 141-147. http://dx.doi.org/10.9739/tjvs.2021.981