Editorial Referateband 2020

Dear Colleagues,

I am extremely pleased to present the volume of papers for the 91^st Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. Which - quality makes the difference? The limitation of quality characteristics in the context of evaluating effectiveness of different areas of ENT medicine occupies a large space in the presentation of our discipline. This is not limited to the benefit assessment considerations of the G-BA (Gemeinsamer Bundesausschuss; governmental administration for payment regulation in medicine), or regulatory instruments for insurance companies, but extends via guidelines up to the sophisticated notion of evidence. In the definition of the term of “evidence”, the concept of quality touches much more, since from a medical point of view it depends on the structure of the service provision, the quality of training of the medical and specialist staff, the whole package of pre- and post-treatment and on the concept of interdisciplinarity, which is important in many treatment areas.