Efficacy of a novel oral appliance and the role of posture on nasal resistance in obstructive sleep apnea Efficacy of a novel oral appliance and the role of posture on nasal resistance in obstructive sleep apnea Download Effectiveness of an intensive weight-loss program for severe OSA in patients undergoing CPAP treatment: a randomized controlled trial Exercise capacity and comorbidities in patients with obstructive sleep apnea