“…In patients and volunteers who had given informed consent, clinical findings (according to the highest "C" class) and Venous Clinical Severity Score (VCSS) 10 of examined limbs were documented, as well as age, gender, body mass index (BMI), time of visit, temperature of the examination room (in degrees Celsius), and outside temperature. DUS scanning (CX50, transducer L12-3 and iU22, transducer L12-5, Philips, Bothell, USA) was performed either by a dermatology trainee (SvdV at Erasmus MC), who was working in a supervised setting, or an experienced angiologist (OP in Grenoble).…”