1. Centre of Vascular and Miniinvasive Surgery, Hospital Agel, Trinec Podlesi, The Czech Republic; Salvatella Ltd., Centre of Non-healing Wounds Treatment, Podiatric Outpatients' Department, Trinec, The Czech Republic
2. Military hospital, Olomouc, The Czech Republic
3. Ambulance for Treatment of Chronic Wounds, Regional Hospital Nachod, Broumov, The Czech Republic
4. Department of Dermatology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
5. Department of dermatology, Military hospital, Olomouc, The Czech Republic