1. Department of Otolaryngology – Head and Neck Surgery Lausanne University Hospital and University of Lausanne Lausanne Switzerland
2. Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK
3. Department of Otorhinolaryngology, Head and Neck Surgery Heidelberg University Hospital and Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ) Heidelberg Germany