A Novel c.676_677insG PHOX2B Mutation in Congenital Central Hypoventilation Syndrome A Novel c.676_677insG PHOX2B Mutation in Congenital Central Hypoventilation Syndrome Download Treatment of Adult Obstructive Sleep Apnea With Positive Airway Pressure: An American Academy of Sleep Medicine Systematic Review, Meta-Analysis, and GRADE Assessment A Global Comparison of Anatomic Risk Factors and Their Relationship to Obstructive Sleep Apnea Severity in Clinical Samples