John A. Gosling, MD, MB, ChB, FRCS, Professor of Anatomy, Stanford University, USA, Philip F. Harris, MD, MB, ChB, MSc, Emeritus Professor of Anatomy, University of Manchester, UK, Peter L. T. Willan, MB, ChB, FRCS, Formerly Professor of Anatomy, University of UAE, Al-Ain, United Arab Emirates and Ian Whitmore, MD, MB, BS, LRCP, MRCS, Professor of Anatomy, Stanford University, USA