1 Hand Therapy Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK. rachel.box@kcl.ac.uk.
2 Hand Surgery Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK.
3 Federal State Budgetary Institution All-Russian Centre for Emergency and Radiation Medicine, Saint Petersburg, Russia.
4 Clinical Specialist Congenital Hand Anomalies and Dermatology, Great Ormond Street Hospital for Children NHS Foundation Trust, Occupational Therapy, Level 5 Frontage Building, Great Ormond Street, London, WC1N 3JH, UK.
5 Plastic Surgery/Dermatology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, WC1N 3JH, UK.
6 Fairview Health Services/M Health, University of Minnesota, 909 Fulton Street SE, Minneapolis, MN, 55455, USA.
7 Cincinnati Children's Hospital and Medical Centre, 3333 Burnet Ave, Cincinnati, OH, 45229, USA.
8 DEBRA Brazil, R. Carl Dettmer, 65- Itoupava Central, Blumenau, SC, 89068-230, Brazil.
9 Orthopaedic Surgery and Developmental Biology, Cincinnati Children's Hospital, 3333 Burnet Ave, Cincinnati, OH, 45229, USA.