Treatment outcomes among rural and urban patients with obstructive sleep apnea: a prospective cohort study Treatment outcomes among rural and urban patients with obstructive sleep apnea: a prospective cohort study 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?