Duplex ultrasound investigation (DUI) has considerably improved the diagnosis of anatomical venous variations in the popliteal region: however. some pitfalls still remain concerning the hemodynamics of incompetent sapheno-popliteal junctions (SPJs). Aims of this study were to assess the prevalence rates of the hemodynamic patterns of reflux. either diastolic or systolic or both. https://spencertifieders.shop/product-category/television-vhs-tapes/