Robert Thayer Sataloff, MD, DMAProfessor and Chair, Department of Otolaryngology – Head and Neck Surgery,Senior Associate Dean for Clinical Academic Specialties, Drexel University College of MedicineAdjunct Professor, Department of Otolaryngology – Head and Neck Surgery,Sidney Kimmel Medical College, Thomas Jefferson University,Chair, American Institute for Voice and Ear ResearchPhiladelphia, Pennsylvania, U.S.A.Pamela C. Roehm, MD, PhDProfessor and Vice Chair, Department of Otolaryngology – Head and Neck Surgery, Drexel University College of Medicine,St. Christopher’s Hospital for Children,Philadelphia, Pennsylvania, USA