Concentric collapse at drug-induced sleep endoscopy: is it really concentric?

Affiliations

• ¹ Integrated Sleep Surgery Team UCBM, Unit of Otolaryngology-Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy. rinaldivittorio@yahoo.it.
• ² Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
• ³ Integrated Sleep Surgery Team UCBM, Unit of Otolaryngology-Integrated Therapies in Otolaryngology, Campus Bio-Medico University, Rome, Italy.
• ⁴ Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
• ⁵ Department of Otorhinolaryngology, Doctor Peset University Hospital, Valencia, Spain.