1 Professor and Chairman, Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds; NIHR Leeds Biomedical Research Centre, Chapel Allerton Hospital, Leeds, UK. Electronic address: pgiannoudi@aol.com.
2 Executive Director Research & Development, AO Foundation, Clavadelerstrasse 8 | 7270 Davos | Switzerland. Electronic address: geoff.richards@aofoundation.org.