Members of the steering group gathered for two meetings this summer. The first, held on 5 June, was adjacent to the Rhinoworld Chicago congress. The second took place on 29 June, adjacent to the European ORL-HNS meeting in Brussels. Both of the meetings shared the same goal. The experts were asked to deliver and comment on their contributions and give their professional view on each chapter. Both meetings lasted a full day and resulted in fruitful conclusions.