[1] Karolinska Univ Hosp, ENT Clin, Dept Otolaryngol, SE-17176 Stockholm, Sweden
[2] Karolinska Inst, Dept Clin Sci Intervent & Technol CLINTEC, Div Speech & Language Pathol, Stockholm, Sweden
[3] Karolinska Univ Hosp, Dept Speech Pathol, SE-17176 Stockholm, Sweden
[4] Karolinska Univ Hosp, Dept Physiotherapy, SE-17176 Stockholm, Sweden
[5] Karolinska Univ Hosp, Dept Oncol, SE-17176 Stockholm, Sweden
[6] Karolinska Univ Hosp, Dept Oncol Stat, SE-17176 Stockholm, Sweden
[7] Karolinska Inst, Med Management Ctr LIME, Dept Learning Informat Management & Eth, Stockholm, Sweden
[8] Umea Univ, Dept Clin Sci, Umea, Sweden