Dr. Nico de Vries is an ENT specialist at OLVG West Hospital Amsterdam, the Netherlands. His special interest is diagnosis and treatment of obstructive sleep apnea in adults, in particular alternatives to CPAP. Research topics include Drug Induced Sleep Endoscopy, Implants, OSA surgery, Positional Therapy, Hypoglossal Nerve Stimulation, Combined Treatments, OSA and bariatric surgery, OSA and Anesthesia. Since 2014 he is guest professor at the University of Antwerp, Belgium and since 2016 Professor of Dental Sleep Medicine, Department of Oral Kinesiology, ACTA Amsterdam.