Affiliation: | (1) Department of Paediatrics, Kantonsspital Aarau, 5001 Aarau, Switzerland;(2) Department of Otolaryngology/Head and Neck Surgery, Kantonsspital Aarau, Aarau, Switzerland;(3) Department of Diagnostic Radiology, Kantonsspital Aarau, Aarau, Switzerland;(4) Department of Pathology, Kantonsspital Aarau, Aarau, Switzerland |