Department of Otorhinolaryngology Head and Neck Surgery, Södra Älvsborg Hospital, Borås, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Sweden.
European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery