Manh DD, Hanh NM. IMPROVED SAPHENOUS VEIN–PRESERVING ENDOVENOUS LASER ABLATION TECHNIQUE IN THE TREATMENT OF CHRONIC SUPERFICIAL VENOUS INSUFFICIENCY OF THE LOWER EXTREMITIES. YHCĐ [Internet]. 2 Tháng Sáu 2026 [cited 10 Tháng Sáu 2026];67(English Version No 1, 2026). Available at: https://tapchiyhcd.hesosoft.com/index.php/yhcd/article/view/5283