1. Therapy Centre for Chronic Wounds, Lahr, Germany;
2. Northwest Hospital, Frankfurt, Germany;
3. Clinica M.D. Barbantini, Lucca, Italy;
4. Care Consulting Service, Flammersfeld, Germany;
5. Lohmann & Rauscher GmbH & Co, KG, Rengsdorf, Germany;
6. Wound Healing Research Unit, Department of Dermatology, University of Pisa, Italy;
7. Operative Unit of Long-Term Care, USSl 2, Feltre (BL), Italy;
8. The Nursing Centre, Duisburg, Germany;
9. Operative Unit of Vascular Surgery, Garbagnate milanese, Italy;
10. Wound Consulting GmbH, Vienna, Austria;
11. Wound and Pain Centre, Wiener neustadt, Austria.