By Helbig Matthias   Helbig Silke   Kahla-Witzsch Heike A.   Kroll Tobias   May Angelika   in International Journal of Health Care Quality Assurance

ISSN:0952-6862|23|3|268-276

Emerald Group Publishing Ltd‎(2010)‎

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By Kroll Tobias   Sharma Shachi Jenny   Dreyer Thomas   Grams Astrid   Klussmann Jens Peter   Obert Martin   Wittekindt Claus   in Acta Oto-Laryngologica

ISSN:0001-6489|133|12|1311-1316

Informa Healthcare‎(2013)‎

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