1. Helsinki University Hospital; Department of Plastic Surgery; PL 266 Helsinki Finland FIN-00029 HUS
2. Oxford Deanery, Health Education Thames Valley; Foundation Programme; Oxford UK
3. Oxford University Hospitals NHS Trust; Oxford University Clinical Academic Graduate School; John Radcliffe Hospital Oxford UK OX3 9DU
4. Oxford University Hospitals NHS Trust; Department of Plastic and Reconstructive Surgery; John Radcliffe Hospital West Wing Oxford Oxfordshire UK OX3 9DU