Phenotypic Labelling Using Drug-Induced Sleep Endoscopy Improves Patient Selection for Mandibular Advancement Device Outcome: A Prospective Study Phenotypic Labelling Using Drug-Induced Sleep Endoscopy Improves Patient Selection for Mandibular Advancement Device Outcome: A Prospective Study Download Phenotypes to Predict Response to Mandibular Advancement Device Therapy Predictors of Intervention Interest Among Individuals With Short Sleep Duration