1. Reconstructive Surgery and Regenerative Medicine Group, Institute of Life Science, Swansea University Medical School, Swansea,
SA28PP United Kingdom
2. The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, SA66NL United Kingdom
3. Institute of Life Science, Swansea University Medical School, Swansea, SA28PP United Kingdom
4. Department of Biomedical Engineering, North Carolina University, Chapel Hill, North Carolina 27599,
USA