1. Tissue Viability Team, Box 243 Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK
2. University of Hertfordshire, School of Health and Social Work, Department of Nursing, Health and Wellbeing, Hertfordshire, UK
3. Mid Yorkshire NHS Trust, UK
4. University of Huddersfield, UK
5. Department of Vascular Surgery, Addenbrooke's Hospitals, Cambridge, UK