%0 Journal Article %T Preface [] %A Stasche %A Norbert %J GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery %D 2012 %I German Medical Science, D¨ısseldorf %R 10.3205/cto000092 %U http://www.egms.de/static/en/journals/cto/2012-11/cto000092.shtml