European of Oto-Rhino- Laryngological Societies
European archives of oto-rhino-laryngology : official journal of the European of Oto-Rhino- Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino- Laryngology - Head and Neck Surgery, 271(8), 2253–2259.
European archives of oto-rhino-laryngology : official journal of the European of Oto-Rhino- Laryngological Societies ( EUFOS ) : affiliated with the German Society for Oto-Rhino- Laryngology - Head and Neck Surgery, 271( 8 ), 2253–2259 .