1. Department of Surgical Biotechnology, Division of Surgery and Interventional Sciences, Royal Free Hospital, University College London (UCL), London, United Kingdom.
2. Department of Surgical Biotechnology, Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, India.
3. Department of Plastic Surgery, Royal Free Hospital, University College London (UCL), London, United Kingdom.
4. Department of Surgical Biotechnology, Institute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London (UCL), Stanmore, United Kingdom.