Tschiesner U, Stier-Jarmer M, Strieth S, Singer S, Dietz A, Fietkau R Wollenberg B, Mast G, Cieza A, Harréus UA. [Development of an ICF-based clinical practice guideline for the assessment of function in head and neck cancer]. Laryngo-Rhino-Otol 2013; 92(5): 314–325. Abstract