External Annular Venoconstriction on the First Valve of Superficial Femoral Vein for Primary Deep Venous Valve Insufficiency in Lower Limb (Report of 40 Cases)

• 股浅静脉第一对瓣膜环缩术治疗原发性下肢深静脉瓣膜功能不全(附40例报告)