Vo, Tuan Anh, Ngoc Hoa Quynh Nguyen, Thoi Hai Nguyen Nguyen, and Trung Duc Tai Le. “Imaging Characteristics of Lower Limb Venous Insufficiency on Doppler Ultrasonic”. The Vietnam Journal of Cardiovascular and Thoracic Surgery 48 (October 28, 2024): 78 - 86. Accessed January 15, 2026. https://vjcts.vn/index.php/vjcts/article/view/1199.