A longitudinal study of the accuracy of positive airway pressure therapy machine-detected apnea-hypopnea events A longitudinal study of the accuracy of positive airway pressure therapy machine-detected apnea-hypopnea events Download Use of a Chinstrap in Treating Sleep Disordered Breathing and Snoring A Case of Obstructive Sleep Apnea, Gastroesophageal Reflux Disease, and Chronic Hiccups: Will CPAP Help?