Jerome W ThompsonProfessor & Chair, Dept of Otolaryngology - Head & Neck SurgeryFrancisco O M VieiraAssistant Prof of Otolaryngology - Head & Neck SurgeryBoth at University of Tennessee Centre for Health Sciences, Memphis, USAMichael J Rutter Paediatric Otolaryngologist, Professor of Paediatrics & OHNS, Cincinnati Children’s Hospital Medical Centre, Cincinnati, USA