1. Department of Plastic and Reconstructive Surgery, Leeds Teaching Hospitals Trust, Leeds, United Kingdom
2. Leeds Institute for Medical Research, University of Leeds, Leeds, United Kingdom
3. Cancer Epidemiology Group, Institute of Cancer and Pathology and Institute of Data Analytics, University of Leeds, United Kingdom
4. Hull University Teaching Hospitals NHS Trust, Hull, United Kingdom
5. Bristol Institute of Clinical Neuroscience, Southmead Hospital, Bristol, United Kingdom