Dr Joseph E Grey, Consultant Physician, University Hospital of Wales, Cardiff and Honorary Consultant in Wound Healing, Wound Healing Research Unit, Cardiff University, Cardiff, UK.Professor Keith G Harding, Head of Department of Dermatology and Wound Healing Academic Director of Innovation & Engagement, School of Medicine, Cardiff University, Cardiff, UK.Dr Girish Patel, Clinical Research Fellow, Department of Dermatology and Wound Healing, School of Medicine, Cardiff University, Cardiff, UK.