1. Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Karolinska University Hospital, Stockholm, Sweden;
2. Department of Reconstructive Plastic Surgery, Karolinska University Hospital, Stockholm, Sweden;
3. Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden;
4. Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden